Home / 20,412.28-30,590.88-15,466.42

Finding the Fourth Proportional to 20,412.28, 30,590.88 and 15,466.42

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Solution

The fourth proportional to 20,412.28, 30,590.88 and 15,466.42 is: 23,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.28 : 30,590.88 = 15,466.42 : x
  2. Step 2: Convert to fraction form
    20,412.28/30,590.88 = 15,466.42/x
  3. Step 3: Cross multiply
    20,412.28x = 30,590.88 × 15,466.42
  4. Step 4: Simplify right side
    20,412.28x = 473,131,398.25
  5. Step 5: Solve for x
    x = 473,131,398.25/20,412.28
  6. Step 6: Final answer
    x = 23,178.76

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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.