Home / 21,358.49-29,475.51-11,927.66

Finding the Fourth Proportional to 21,358.49, 29,475.51 and 11,927.66

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Solution

The fourth proportional to 21,358.49, 29,475.51 and 11,927.66 is: 16,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.49 : 29,475.51 = 11,927.66 : x
  2. Step 2: Convert to fraction form
    21,358.49/29,475.51 = 11,927.66/x
  3. Step 3: Cross multiply
    21,358.49x = 29,475.51 × 11,927.66
  4. Step 4: Simplify right side
    21,358.49x = 351,573,861.61
  5. Step 5: Solve for x
    x = 351,573,861.61/21,358.49
  6. Step 6: Final answer
    x = 16,460.61

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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.