Home / 28,931.10-43,399.92-9,202.74

Finding the Fourth Proportional to 28,931.10, 43,399.92 and 9,202.74

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Solution

The fourth proportional to 28,931.10, 43,399.92 and 9,202.74 is: 13,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.10 : 43,399.92 = 9,202.74 : x
  2. Step 2: Convert to fraction form
    28,931.10/43,399.92 = 9,202.74/x
  3. Step 3: Cross multiply
    28,931.10x = 43,399.92 × 9,202.74
  4. Step 4: Simplify right side
    28,931.10x = 399,398,179.78
  5. Step 5: Solve for x
    x = 399,398,179.78/28,931.10
  6. Step 6: Final answer
    x = 13,805.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.