Home / 28,525-39,365.34-15,949.78

Finding the Fourth Proportional to 28,525, 39,365.34 and 15,949.78

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Solution

The fourth proportional to 28,525, 39,365.34 and 15,949.78 is: 22,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525 : 39,365.34 = 15,949.78 : x
  2. Step 2: Convert to fraction form
    28,525/39,365.34 = 15,949.78/x
  3. Step 3: Cross multiply
    28,525x = 39,365.34 × 15,949.78
  4. Step 4: Simplify right side
    28,525x = 627,868,512.63
  5. Step 5: Solve for x
    x = 627,868,512.63/28,525
  6. Step 6: Final answer
    x = 22,011.17

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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.