Home / 18,870.74-28,279.56-14,904.57

Finding the Fourth Proportional to 18,870.74, 28,279.56 and 14,904.57

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Solution

The fourth proportional to 18,870.74, 28,279.56 and 14,904.57 is: 22,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.74 : 28,279.56 = 14,904.57 : x
  2. Step 2: Convert to fraction form
    18,870.74/28,279.56 = 14,904.57/x
  3. Step 3: Cross multiply
    18,870.74x = 28,279.56 × 14,904.57
  4. Step 4: Simplify right side
    18,870.74x = 421,494,843.53
  5. Step 5: Solve for x
    x = 421,494,843.53/18,870.74
  6. Step 6: Final answer
    x = 22,335.90

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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.