Home / 28,300.32-42,439.36-9,575.20

Finding the Fourth Proportional to 28,300.32, 42,439.36 and 9,575.20

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Solution

The fourth proportional to 28,300.32, 42,439.36 and 9,575.20 is: 14,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.32 : 42,439.36 = 9,575.20 : x
  2. Step 2: Convert to fraction form
    28,300.32/42,439.36 = 9,575.20/x
  3. Step 3: Cross multiply
    28,300.32x = 42,439.36 × 9,575.20
  4. Step 4: Simplify right side
    28,300.32x = 406,365,359.87
  5. Step 5: Solve for x
    x = 406,365,359.87/28,300.32
  6. Step 6: Final answer
    x = 14,359.04

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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.