Home / 20,388.01-30,582-13,460.89

Finding the Fourth Proportional to 20,388.01, 30,582 and 13,460.89

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Solution

The fourth proportional to 20,388.01, 30,582 and 13,460.89 is: 20,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.01 : 30,582 = 13,460.89 : x
  2. Step 2: Convert to fraction form
    20,388.01/30,582 = 13,460.89/x
  3. Step 3: Cross multiply
    20,388.01x = 30,582 × 13,460.89
  4. Step 4: Simplify right side
    20,388.01x = 411,660,937.98
  5. Step 5: Solve for x
    x = 411,660,937.98/20,388.01
  6. Step 6: Final answer
    x = 20,191.33

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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.