Home / 28,068.80-38,734.92-15,493.52

Finding the Fourth Proportional to 28,068.80, 38,734.92 and 15,493.52

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Solution

The fourth proportional to 28,068.80, 38,734.92 and 15,493.52 is: 21,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.80 : 38,734.92 = 15,493.52 : x
  2. Step 2: Convert to fraction form
    28,068.80/38,734.92 = 15,493.52/x
  3. Step 3: Cross multiply
    28,068.80x = 38,734.92 × 15,493.52
  4. Step 4: Simplify right side
    28,068.80x = 600,140,257.72
  5. Step 5: Solve for x
    x = 600,140,257.72/28,068.80
  6. Step 6: Final answer
    x = 21,381.04

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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.