Home / 28,373.25-39,155.09-15,800.97

Finding the Fourth Proportional to 28,373.25, 39,155.09 and 15,800.97

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Solution

The fourth proportional to 28,373.25, 39,155.09 and 15,800.97 is: 21,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.25 : 39,155.09 = 15,800.97 : x
  2. Step 2: Convert to fraction form
    28,373.25/39,155.09 = 15,800.97/x
  3. Step 3: Cross multiply
    28,373.25x = 39,155.09 × 15,800.97
  4. Step 4: Simplify right side
    28,373.25x = 618,688,323.43
  5. Step 5: Solve for x
    x = 618,688,323.43/28,373.25
  6. Step 6: Final answer
    x = 21,805.34

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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.