Home / 28,595.12-39,460.18-15,847.97

Finding the Fourth Proportional to 28,595.12, 39,460.18 and 15,847.97

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Solution

The fourth proportional to 28,595.12, 39,460.18 and 15,847.97 is: 21,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,595.12 : 39,460.18 = 15,847.97 : x
  2. Step 2: Convert to fraction form
    28,595.12/39,460.18 = 15,847.97/x
  3. Step 3: Cross multiply
    28,595.12x = 39,460.18 × 15,847.97
  4. Step 4: Simplify right side
    28,595.12x = 625,363,748.83
  5. Step 5: Solve for x
    x = 625,363,748.83/28,595.12
  6. Step 6: Final answer
    x = 21,869.60

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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.