Home / 29,331.12-40,477.12-15,902.56

Finding the Fourth Proportional to 29,331.12, 40,477.12 and 15,902.56

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Solution

The fourth proportional to 29,331.12, 40,477.12 and 15,902.56 is: 21,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,331.12 : 40,477.12 = 15,902.56 : x
  2. Step 2: Convert to fraction form
    29,331.12/40,477.12 = 15,902.56/x
  3. Step 3: Cross multiply
    29,331.12x = 40,477.12 × 15,902.56
  4. Step 4: Simplify right side
    29,331.12x = 643,689,829.43
  5. Step 5: Solve for x
    x = 643,689,829.43/29,331.12
  6. Step 6: Final answer
    x = 21,945.63

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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.