Home / 20,732.32-28,543.98-18,452.80

Finding the Fourth Proportional to 20,732.32, 28,543.98 and 18,452.80

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Solution

The fourth proportional to 20,732.32, 28,543.98 and 18,452.80 is: 25,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.32 : 28,543.98 = 18,452.80 : x
  2. Step 2: Convert to fraction form
    20,732.32/28,543.98 = 18,452.80/x
  3. Step 3: Cross multiply
    20,732.32x = 28,543.98 × 18,452.80
  4. Step 4: Simplify right side
    20,732.32x = 526,716,354.14
  5. Step 5: Solve for x
    x = 526,716,354.14/20,732.32
  6. Step 6: Final answer
    x = 25,405.57

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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.