Home / 20,353.98-30,531-5,562.90

Finding the Fourth Proportional to 20,353.98, 30,531 and 5,562.90

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Solution

The fourth proportional to 20,353.98, 30,531 and 5,562.90 is: 8,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.98 : 30,531 = 5,562.90 : x
  2. Step 2: Convert to fraction form
    20,353.98/30,531 = 5,562.90/x
  3. Step 3: Cross multiply
    20,353.98x = 30,531 × 5,562.90
  4. Step 4: Simplify right side
    20,353.98x = 169,840,899.90
  5. Step 5: Solve for x
    x = 169,840,899.90/20,353.98
  6. Step 6: Final answer
    x = 8,344.36

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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.