Home / 20,523.90-30,730.33-10,642.41

Finding the Fourth Proportional to 20,523.90, 30,730.33 and 10,642.41

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Solution

The fourth proportional to 20,523.90, 30,730.33 and 10,642.41 is: 15,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.90 : 30,730.33 = 10,642.41 : x
  2. Step 2: Convert to fraction form
    20,523.90/30,730.33 = 10,642.41/x
  3. Step 3: Cross multiply
    20,523.90x = 30,730.33 × 10,642.41
  4. Step 4: Simplify right side
    20,523.90x = 327,044,784.60
  5. Step 5: Solve for x
    x = 327,044,784.60/20,523.90
  6. Step 6: Final answer
    x = 15,934.82

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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.