Home / 28,358.72-42,535.52-8,641.92

Finding the Fourth Proportional to 28,358.72, 42,535.52 and 8,641.92

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Solution

The fourth proportional to 28,358.72, 42,535.52 and 8,641.92 is: 12,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.72 : 42,535.52 = 8,641.92 : x
  2. Step 2: Convert to fraction form
    28,358.72/42,535.52 = 8,641.92/x
  3. Step 3: Cross multiply
    28,358.72x = 42,535.52 × 8,641.92
  4. Step 4: Simplify right side
    28,358.72x = 367,588,561.00
  5. Step 5: Solve for x
    x = 367,588,561.00/28,358.72
  6. Step 6: Final answer
    x = 12,962.10

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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.