Home / 18,987.16-28,454.00-14,527.57

Finding the Fourth Proportional to 18,987.16, 28,454.00 and 14,527.57

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Solution

The fourth proportional to 18,987.16, 28,454.00 and 14,527.57 is: 21,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.16 : 28,454.00 = 14,527.57 : x
  2. Step 2: Convert to fraction form
    18,987.16/28,454.00 = 14,527.57/x
  3. Step 3: Cross multiply
    18,987.16x = 28,454.00 × 14,527.57
  4. Step 4: Simplify right side
    18,987.16x = 413,367,286.75
  5. Step 5: Solve for x
    x = 413,367,286.75/18,987.16
  6. Step 6: Final answer
    x = 21,770.89

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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.