Home / 28,250.45-38,984.12-15,503.43

Finding the Fourth Proportional to 28,250.45, 38,984.12 and 15,503.43

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Solution

The fourth proportional to 28,250.45, 38,984.12 and 15,503.43 is: 21,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.45 : 38,984.12 = 15,503.43 : x
  2. Step 2: Convert to fraction form
    28,250.45/38,984.12 = 15,503.43/x
  3. Step 3: Cross multiply
    28,250.45x = 38,984.12 × 15,503.43
  4. Step 4: Simplify right side
    28,250.45x = 604,387,614.29
  5. Step 5: Solve for x
    x = 604,387,614.29/28,250.45
  6. Step 6: Final answer
    x = 21,393.91

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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.