Home / 21,337.46-29,449.29-12,392.45

Finding the Fourth Proportional to 21,337.46, 29,449.29 and 12,392.45

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Solution

The fourth proportional to 21,337.46, 29,449.29 and 12,392.45 is: 17,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.46 : 29,449.29 = 12,392.45 : x
  2. Step 2: Convert to fraction form
    21,337.46/29,449.29 = 12,392.45/x
  3. Step 3: Cross multiply
    21,337.46x = 29,449.29 × 12,392.45
  4. Step 4: Simplify right side
    21,337.46x = 364,948,706.61
  5. Step 5: Solve for x
    x = 364,948,706.61/21,337.46
  6. Step 6: Final answer
    x = 17,103.67

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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.