Home / 28,373.25-39,156.30-15,798

Finding the Fourth Proportional to 28,373.25, 39,156.30 and 15,798

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Solution

The fourth proportional to 28,373.25, 39,156.30 and 15,798 is: 21,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.25 : 39,156.30 = 15,798 : x
  2. Step 2: Convert to fraction form
    28,373.25/39,156.30 = 15,798/x
  3. Step 3: Cross multiply
    28,373.25x = 39,156.30 × 15,798
  4. Step 4: Simplify right side
    28,373.25x = 618,591,227.40
  5. Step 5: Solve for x
    x = 618,591,227.40/28,373.25
  6. Step 6: Final answer
    x = 21,801.92

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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.