Home / 20,582.68-28,418.74-12,627.46

Finding the Fourth Proportional to 20,582.68, 28,418.74 and 12,627.46

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Solution

The fourth proportional to 20,582.68, 28,418.74 and 12,627.46 is: 17,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.68 : 28,418.74 = 12,627.46 : x
  2. Step 2: Convert to fraction form
    20,582.68/28,418.74 = 12,627.46/x
  3. Step 3: Cross multiply
    20,582.68x = 28,418.74 × 12,627.46
  4. Step 4: Simplify right side
    20,582.68x = 358,856,502.60
  5. Step 5: Solve for x
    x = 358,856,502.60/20,582.68
  6. Step 6: Final answer
    x = 17,434.88

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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.