Home / 20,534.24-28,340.16-12,471.97

Finding the Fourth Proportional to 20,534.24, 28,340.16 and 12,471.97

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Solution

The fourth proportional to 20,534.24, 28,340.16 and 12,471.97 is: 17,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.24 : 28,340.16 = 12,471.97 : x
  2. Step 2: Convert to fraction form
    20,534.24/28,340.16 = 12,471.97/x
  3. Step 3: Cross multiply
    20,534.24x = 28,340.16 × 12,471.97
  4. Step 4: Simplify right side
    20,534.24x = 353,457,625.32
  5. Step 5: Solve for x
    x = 353,457,625.32/20,534.24
  6. Step 6: Final answer
    x = 17,213.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.