Home / 32,715.86-45,146.75-19,990.35

Finding the Fourth Proportional to 32,715.86, 45,146.75 and 19,990.35

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Solution

The fourth proportional to 32,715.86, 45,146.75 and 19,990.35 is: 27,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,715.86 : 45,146.75 = 19,990.35 : x
  2. Step 2: Convert to fraction form
    32,715.86/45,146.75 = 19,990.35/x
  3. Step 3: Cross multiply
    32,715.86x = 45,146.75 × 19,990.35
  4. Step 4: Simplify right side
    32,715.86x = 902,499,108.13
  5. Step 5: Solve for x
    x = 902,499,108.13/32,715.86
  6. Step 6: Final answer
    x = 27,585.98

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.