Home / 18,788.08-28,323.18-17,519.76

Finding the Fourth Proportional to 18,788.08, 28,323.18 and 17,519.76

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Solution

The fourth proportional to 18,788.08, 28,323.18 and 17,519.76 is: 26,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.08 : 28,323.18 = 17,519.76 : x
  2. Step 2: Convert to fraction form
    18,788.08/28,323.18 = 17,519.76/x
  3. Step 3: Cross multiply
    18,788.08x = 28,323.18 × 17,519.76
  4. Step 4: Simplify right side
    18,788.08x = 496,215,316.04
  5. Step 5: Solve for x
    x = 496,215,316.04/18,788.08
  6. Step 6: Final answer
    x = 26,411.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.