Home / 20,294.46-27,972.90-13,577.67

Finding the Fourth Proportional to 20,294.46, 27,972.90 and 13,577.67

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Solution

The fourth proportional to 20,294.46, 27,972.90 and 13,577.67 is: 18,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.46 : 27,972.90 = 13,577.67 : x
  2. Step 2: Convert to fraction form
    20,294.46/27,972.90 = 13,577.67/x
  3. Step 3: Cross multiply
    20,294.46x = 27,972.90 × 13,577.67
  4. Step 4: Simplify right side
    20,294.46x = 379,806,805.14
  5. Step 5: Solve for x
    x = 379,806,805.14/20,294.46
  6. Step 6: Final answer
    x = 18,714.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.