Home / 21,701.32-29,946.18-12,270.76

Finding the Fourth Proportional to 21,701.32, 29,946.18 and 12,270.76

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Solution

The fourth proportional to 21,701.32, 29,946.18 and 12,270.76 is: 16,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.32 : 29,946.18 = 12,270.76 : x
  2. Step 2: Convert to fraction form
    21,701.32/29,946.18 = 12,270.76/x
  3. Step 3: Cross multiply
    21,701.32x = 29,946.18 × 12,270.76
  4. Step 4: Simplify right side
    21,701.32x = 367,462,387.70
  5. Step 5: Solve for x
    x = 367,462,387.70/21,701.32
  6. Step 6: Final answer
    x = 16,932.72

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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.