Home / 28,523-39,362.58-15,947.78

Finding the Fourth Proportional to 28,523, 39,362.58 and 15,947.78

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Solution

The fourth proportional to 28,523, 39,362.58 and 15,947.78 is: 22,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,523 : 39,362.58 = 15,947.78 : x
  2. Step 2: Convert to fraction form
    28,523/39,362.58 = 15,947.78/x
  3. Step 3: Cross multiply
    28,523x = 39,362.58 × 15,947.78
  4. Step 4: Simplify right side
    28,523x = 627,745,766.07
  5. Step 5: Solve for x
    x = 627,745,766.07/28,523
  6. Step 6: Final answer
    x = 22,008.41

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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.