Home / 28,592.15-39,456.69-15,671.30

Finding the Fourth Proportional to 28,592.15, 39,456.69 and 15,671.30

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Solution

The fourth proportional to 28,592.15, 39,456.69 and 15,671.30 is: 21,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.15 : 39,456.69 = 15,671.30 : x
  2. Step 2: Convert to fraction form
    28,592.15/39,456.69 = 15,671.30/x
  3. Step 3: Cross multiply
    28,592.15x = 39,456.69 × 15,671.30
  4. Step 4: Simplify right side
    28,592.15x = 618,337,626.00
  5. Step 5: Solve for x
    x = 618,337,626.00/28,592.15
  6. Step 6: Final answer
    x = 21,626.13

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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.