Home / 16,721.28-23,052.80-13,877.76

Finding the Fourth Proportional to 16,721.28, 23,052.80 and 13,877.76

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Solution

The fourth proportional to 16,721.28, 23,052.80 and 13,877.76 is: 19,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,721.28 : 23,052.80 = 13,877.76 : x
  2. Step 2: Convert to fraction form
    16,721.28/23,052.80 = 13,877.76/x
  3. Step 3: Cross multiply
    16,721.28x = 23,052.80 × 13,877.76
  4. Step 4: Simplify right side
    16,721.28x = 319,921,225.73
  5. Step 5: Solve for x
    x = 319,921,225.73/16,721.28
  6. Step 6: Final answer
    x = 19,132.58

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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.