Home / 32,853.19-45,321.55-21,517.70

Finding the Fourth Proportional to 32,853.19, 45,321.55 and 21,517.70

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Solution

The fourth proportional to 32,853.19, 45,321.55 and 21,517.70 is: 29,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,853.19 : 45,321.55 = 21,517.70 : x
  2. Step 2: Convert to fraction form
    32,853.19/45,321.55 = 21,517.70/x
  3. Step 3: Cross multiply
    32,853.19x = 45,321.55 × 21,517.70
  4. Step 4: Simplify right side
    32,853.19x = 975,215,349.34
  5. Step 5: Solve for x
    x = 975,215,349.34/32,853.19
  6. Step 6: Final answer
    x = 29,684.04

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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.