Home / 28,192.16-42,288.34-9,471.66

Finding the Fourth Proportional to 28,192.16, 42,288.34 and 9,471.66

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Solution

The fourth proportional to 28,192.16, 42,288.34 and 9,471.66 is: 14,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.16 : 42,288.34 = 9,471.66 : x
  2. Step 2: Convert to fraction form
    28,192.16/42,288.34 = 9,471.66/x
  3. Step 3: Cross multiply
    28,192.16x = 42,288.34 × 9,471.66
  4. Step 4: Simplify right side
    28,192.16x = 400,540,778.44
  5. Step 5: Solve for x
    x = 400,540,778.44/28,192.16
  6. Step 6: Final answer
    x = 14,207.52

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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.