Home / 20,319.28-30,475.18-9,223.30

Finding the Fourth Proportional to 20,319.28, 30,475.18 and 9,223.30

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Solution

The fourth proportional to 20,319.28, 30,475.18 and 9,223.30 is: 13,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.28 : 30,475.18 = 9,223.30 : x
  2. Step 2: Convert to fraction form
    20,319.28/30,475.18 = 9,223.30/x
  3. Step 3: Cross multiply
    20,319.28x = 30,475.18 × 9,223.30
  4. Step 4: Simplify right side
    20,319.28x = 281,081,727.69
  5. Step 5: Solve for x
    x = 281,081,727.69/20,319.28
  6. Step 6: Final answer
    x = 13,833.25

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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.