Home / 18,688.10-28,032.15-17,375.90

Finding the Fourth Proportional to 18,688.10, 28,032.15 and 17,375.90

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Solution

The fourth proportional to 18,688.10, 28,032.15 and 17,375.90 is: 26,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.10 : 28,032.15 = 17,375.90 : x
  2. Step 2: Convert to fraction form
    18,688.10/28,032.15 = 17,375.90/x
  3. Step 3: Cross multiply
    18,688.10x = 28,032.15 × 17,375.90
  4. Step 4: Simplify right side
    18,688.10x = 487,083,835.19
  5. Step 5: Solve for x
    x = 487,083,835.19/18,688.10
  6. Step 6: Final answer
    x = 26,063.85

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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.