Home / 28,610.30-42,915.45-19,862.30

Finding the Fourth Proportional to 28,610.30, 42,915.45 and 19,862.30

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Solution

The fourth proportional to 28,610.30, 42,915.45 and 19,862.30 is: 29,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.30 : 42,915.45 = 19,862.30 : x
  2. Step 2: Convert to fraction form
    28,610.30/42,915.45 = 19,862.30/x
  3. Step 3: Cross multiply
    28,610.30x = 42,915.45 × 19,862.30
  4. Step 4: Simplify right side
    28,610.30x = 852,399,542.54
  5. Step 5: Solve for x
    x = 852,399,542.54/28,610.30
  6. Step 6: Final answer
    x = 29,793.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.