Home / 31,399.20-43,329.60-17,252.40

Finding the Fourth Proportional to 31,399.20, 43,329.60 and 17,252.40

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Solution

The fourth proportional to 31,399.20, 43,329.60 and 17,252.40 is: 23,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.20 : 43,329.60 = 17,252.40 : x
  2. Step 2: Convert to fraction form
    31,399.20/43,329.60 = 17,252.40/x
  3. Step 3: Cross multiply
    31,399.20x = 43,329.60 × 17,252.40
  4. Step 4: Simplify right side
    31,399.20x = 747,539,591.04
  5. Step 5: Solve for x
    x = 747,539,591.04/31,399.20
  6. Step 6: Final answer
    x = 23,807.60

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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.