Home / 20,417.06-28,174.83-12,472.58

Finding the Fourth Proportional to 20,417.06, 28,174.83 and 12,472.58

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Solution

The fourth proportional to 20,417.06, 28,174.83 and 12,472.58 is: 17,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.06 : 28,174.83 = 12,472.58 : x
  2. Step 2: Convert to fraction form
    20,417.06/28,174.83 = 12,472.58/x
  3. Step 3: Cross multiply
    20,417.06x = 28,174.83 × 12,472.58
  4. Step 4: Simplify right side
    20,417.06x = 351,412,821.16
  5. Step 5: Solve for x
    x = 351,412,821.16/20,417.06
  6. Step 6: Final answer
    x = 17,211.72

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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.