Home / 22,740.72-31,376.48-14,781.66

Finding the Fourth Proportional to 22,740.72, 31,376.48 and 14,781.66

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Solution

The fourth proportional to 22,740.72, 31,376.48 and 14,781.66 is: 20,394.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.72 : 31,376.48 = 14,781.66 : x
  2. Step 2: Convert to fraction form
    22,740.72/31,376.48 = 14,781.66/x
  3. Step 3: Cross multiply
    22,740.72x = 31,376.48 × 14,781.66
  4. Step 4: Simplify right side
    22,740.72x = 463,796,459.36
  5. Step 5: Solve for x
    x = 463,796,459.36/22,740.72
  6. Step 6: Final answer
    x = 20,394.98

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Half scale
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Double scale
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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.