Home / 20,424.17-28,184.82-11,471.24

Finding the Fourth Proportional to 20,424.17, 28,184.82 and 11,471.24

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Solution

The fourth proportional to 20,424.17, 28,184.82 and 11,471.24 is: 15,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.17 : 28,184.82 = 11,471.24 : x
  2. Step 2: Convert to fraction form
    20,424.17/28,184.82 = 11,471.24/x
  3. Step 3: Cross multiply
    20,424.17x = 28,184.82 × 11,471.24
  4. Step 4: Simplify right side
    20,424.17x = 323,314,834.58
  5. Step 5: Solve for x
    x = 323,314,834.58/20,424.17
  6. Step 6: Final answer
    x = 15,830.01

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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.