Home / 21,560.46-29,748.51-12,125.58

Finding the Fourth Proportional to 21,560.46, 29,748.51 and 12,125.58

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Solution

The fourth proportional to 21,560.46, 29,748.51 and 12,125.58 is: 16,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.46 : 29,748.51 = 12,125.58 : x
  2. Step 2: Convert to fraction form
    21,560.46/29,748.51 = 12,125.58/x
  3. Step 3: Cross multiply
    21,560.46x = 29,748.51 × 12,125.58
  4. Step 4: Simplify right side
    21,560.46x = 360,717,937.89
  5. Step 5: Solve for x
    x = 360,717,937.89/21,560.46
  6. Step 6: Final answer
    x = 16,730.53

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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.