Home / 28,375.60-42,570.72-13,595.92

Finding the Fourth Proportional to 28,375.60, 42,570.72 and 13,595.92

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Solution

The fourth proportional to 28,375.60, 42,570.72 and 13,595.92 is: 20,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.60 : 42,570.72 = 13,595.92 : x
  2. Step 2: Convert to fraction form
    28,375.60/42,570.72 = 13,595.92/x
  3. Step 3: Cross multiply
    28,375.60x = 42,570.72 × 13,595.92
  4. Step 4: Simplify right side
    28,375.60x = 578,788,103.46
  5. Step 5: Solve for x
    x = 578,788,103.46/28,375.60
  6. Step 6: Final answer
    x = 20,397.39

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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.