Home / 28,281.98-42,432.08-8,562.53

Finding the Fourth Proportional to 28,281.98, 42,432.08 and 8,562.53

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Solution

The fourth proportional to 28,281.98, 42,432.08 and 8,562.53 is: 12,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.98 : 42,432.08 = 8,562.53 : x
  2. Step 2: Convert to fraction form
    28,281.98/42,432.08 = 8,562.53/x
  3. Step 3: Cross multiply
    28,281.98x = 42,432.08 × 8,562.53
  4. Step 4: Simplify right side
    28,281.98x = 363,325,702.99
  5. Step 5: Solve for x
    x = 363,325,702.99/28,281.98
  6. Step 6: Final answer
    x = 12,846.55

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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.