Home / 28,081.27-38,758.80-16,151.50

Finding the Fourth Proportional to 28,081.27, 38,758.80 and 16,151.50

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Solution

The fourth proportional to 28,081.27, 38,758.80 and 16,151.50 is: 22,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.27 : 38,758.80 = 16,151.50 : x
  2. Step 2: Convert to fraction form
    28,081.27/38,758.80 = 16,151.50/x
  3. Step 3: Cross multiply
    28,081.27x = 38,758.80 × 16,151.50
  4. Step 4: Simplify right side
    28,081.27x = 626,012,758.20
  5. Step 5: Solve for x
    x = 626,012,758.20/28,081.27
  6. Step 6: Final answer
    x = 22,292.89

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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.