Home / 28,120.52-42,184.50-10,348.76

Finding the Fourth Proportional to 28,120.52, 42,184.50 and 10,348.76

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Solution

The fourth proportional to 28,120.52, 42,184.50 and 10,348.76 is: 15,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.52 : 42,184.50 = 10,348.76 : x
  2. Step 2: Convert to fraction form
    28,120.52/42,184.50 = 10,348.76/x
  3. Step 3: Cross multiply
    28,120.52x = 42,184.50 × 10,348.76
  4. Step 4: Simplify right side
    28,120.52x = 436,557,266.22
  5. Step 5: Solve for x
    x = 436,557,266.22/28,120.52
  6. Step 6: Final answer
    x = 15,524.51

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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.