Home / 31,487.86-43,455.22-17,340.70

Finding the Fourth Proportional to 31,487.86, 43,455.22 and 17,340.70

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Solution

The fourth proportional to 31,487.86, 43,455.22 and 17,340.70 is: 23,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.86 : 43,455.22 = 17,340.70 : x
  2. Step 2: Convert to fraction form
    31,487.86/43,455.22 = 17,340.70/x
  3. Step 3: Cross multiply
    31,487.86x = 43,455.22 × 17,340.70
  4. Step 4: Simplify right side
    31,487.86x = 753,543,862.94
  5. Step 5: Solve for x
    x = 753,543,862.94/31,487.86
  6. Step 6: Final answer
    x = 23,931.25

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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.