Home / 29,140.80-40,213.92-16,564.72

Finding the Fourth Proportional to 29,140.80, 40,213.92 and 16,564.72

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Solution

The fourth proportional to 29,140.80, 40,213.92 and 16,564.72 is: 22,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,140.80 : 40,213.92 = 16,564.72 : x
  2. Step 2: Convert to fraction form
    29,140.80/40,213.92 = 16,564.72/x
  3. Step 3: Cross multiply
    29,140.80x = 40,213.92 × 16,564.72
  4. Step 4: Simplify right side
    29,140.80x = 666,132,324.90
  5. Step 5: Solve for x
    x = 666,132,324.90/29,140.80
  6. Step 6: Final answer
    x = 22,859.10

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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.