Home / 28,219.59-42,331.48-9,499.55

Finding the Fourth Proportional to 28,219.59, 42,331.48 and 9,499.55

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Solution

The fourth proportional to 28,219.59, 42,331.48 and 9,499.55 is: 14,250.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.59 : 42,331.48 = 9,499.55 : x
  2. Step 2: Convert to fraction form
    28,219.59/42,331.48 = 9,499.55/x
  3. Step 3: Cross multiply
    28,219.59x = 42,331.48 × 9,499.55
  4. Step 4: Simplify right side
    28,219.59x = 402,129,775.43
  5. Step 5: Solve for x
    x = 402,129,775.43/28,219.59
  6. Step 6: Final answer
    x = 14,250.02

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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.