Home / 29,402.24-40,557.12-21,004.16

Finding the Fourth Proportional to 29,402.24, 40,557.12 and 21,004.16

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Solution

The fourth proportional to 29,402.24, 40,557.12 and 21,004.16 is: 28,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,402.24 : 40,557.12 = 21,004.16 : x
  2. Step 2: Convert to fraction form
    29,402.24/40,557.12 = 21,004.16/x
  3. Step 3: Cross multiply
    29,402.24x = 40,557.12 × 21,004.16
  4. Step 4: Simplify right side
    29,402.24x = 851,868,237.62
  5. Step 5: Solve for x
    x = 851,868,237.62/29,402.24
  6. Step 6: Final answer
    x = 28,972.90

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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.