Home / 28,387.95-42,587.10-9,667.10

Finding the Fourth Proportional to 28,387.95, 42,587.10 and 9,667.10

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Solution

The fourth proportional to 28,387.95, 42,587.10 and 9,667.10 is: 14,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.95 : 42,587.10 = 9,667.10 : x
  2. Step 2: Convert to fraction form
    28,387.95/42,587.10 = 9,667.10/x
  3. Step 3: Cross multiply
    28,387.95x = 42,587.10 × 9,667.10
  4. Step 4: Simplify right side
    28,387.95x = 411,693,754.41
  5. Step 5: Solve for x
    x = 411,693,754.41/28,387.95
  6. Step 6: Final answer
    x = 14,502.41

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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.