Home / 28,321.60-42,484.56-13,537.12

Finding the Fourth Proportional to 28,321.60, 42,484.56 and 13,537.12

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Solution

The fourth proportional to 28,321.60, 42,484.56 and 13,537.12 is: 20,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.60 : 42,484.56 = 13,537.12 : x
  2. Step 2: Convert to fraction form
    28,321.60/42,484.56 = 13,537.12/x
  3. Step 3: Cross multiply
    28,321.60x = 42,484.56 × 13,537.12
  4. Step 4: Simplify right side
    28,321.60x = 575,118,586.87
  5. Step 5: Solve for x
    x = 575,118,586.87/28,321.60
  6. Step 6: Final answer
    x = 20,306.71

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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.