Home / 20,523.51-30,748.19-9,439.47

Finding the Fourth Proportional to 20,523.51, 30,748.19 and 9,439.47

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Solution

The fourth proportional to 20,523.51, 30,748.19 and 9,439.47 is: 14,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.51 : 30,748.19 = 9,439.47 : x
  2. Step 2: Convert to fraction form
    20,523.51/30,748.19 = 9,439.47/x
  3. Step 3: Cross multiply
    20,523.51x = 30,748.19 × 9,439.47
  4. Step 4: Simplify right side
    20,523.51x = 290,246,569.86
  5. Step 5: Solve for x
    x = 290,246,569.86/20,523.51
  6. Step 6: Final answer
    x = 14,142.15

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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.