Home / 20,543.71-30,820.17-6,504.57

Finding the Fourth Proportional to 20,543.71, 30,820.17 and 6,504.57

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Solution

The fourth proportional to 20,543.71, 30,820.17 and 6,504.57 is: 9,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.71 : 30,820.17 = 6,504.57 : x
  2. Step 2: Convert to fraction form
    20,543.71/30,820.17 = 6,504.57/x
  3. Step 3: Cross multiply
    20,543.71x = 30,820.17 × 6,504.57
  4. Step 4: Simplify right side
    20,543.71x = 200,472,068.75
  5. Step 5: Solve for x
    x = 200,472,068.75/20,543.71
  6. Step 6: Final answer
    x = 9,758.32

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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.