Home / 28,191.66-42,287.59-9,471.16

Finding the Fourth Proportional to 28,191.66, 42,287.59 and 9,471.16

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Solution

The fourth proportional to 28,191.66, 42,287.59 and 9,471.16 is: 14,206.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.66 : 42,287.59 = 9,471.16 : x
  2. Step 2: Convert to fraction form
    28,191.66/42,287.59 = 9,471.16/x
  3. Step 3: Cross multiply
    28,191.66x = 42,287.59 × 9,471.16
  4. Step 4: Simplify right side
    28,191.66x = 400,512,530.90
  5. Step 5: Solve for x
    x = 400,512,530.90/28,191.66
  6. Step 6: Final answer
    x = 14,206.77

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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.