Home / 15,781.44-23,681.52-14,167.92

Finding the Fourth Proportional to 15,781.44, 23,681.52 and 14,167.92

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Solution

The fourth proportional to 15,781.44, 23,681.52 and 14,167.92 is: 21,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.44 : 23,681.52 = 14,167.92 : x
  2. Step 2: Convert to fraction form
    15,781.44/23,681.52 = 14,167.92/x
  3. Step 3: Cross multiply
    15,781.44x = 23,681.52 × 14,167.92
  4. Step 4: Simplify right side
    15,781.44x = 335,517,880.84
  5. Step 5: Solve for x
    x = 335,517,880.84/15,781.44
  6. Step 6: Final answer
    x = 21,260.28

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1.5x scale

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.