Home / 28,192.97-42,282.15-13,372.40

Finding the Fourth Proportional to 28,192.97, 42,282.15 and 13,372.40

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Solution

The fourth proportional to 28,192.97, 42,282.15 and 13,372.40 is: 20,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.97 : 42,282.15 = 13,372.40 : x
  2. Step 2: Convert to fraction form
    28,192.97/42,282.15 = 13,372.40/x
  3. Step 3: Cross multiply
    28,192.97x = 42,282.15 × 13,372.40
  4. Step 4: Simplify right side
    28,192.97x = 565,413,611.25
  5. Step 5: Solve for x
    x = 565,413,611.25/28,192.97
  6. Step 6: Final answer
    x = 20,055.13

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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.