Home / 28,649.79-39,535.97-15,902.32

Finding the Fourth Proportional to 28,649.79, 39,535.97 and 15,902.32

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Solution

The fourth proportional to 28,649.79, 39,535.97 and 15,902.32 is: 21,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.79 : 39,535.97 = 15,902.32 : x
  2. Step 2: Convert to fraction form
    28,649.79/39,535.97 = 15,902.32/x
  3. Step 3: Cross multiply
    28,649.79x = 39,535.97 × 15,902.32
  4. Step 4: Simplify right side
    28,649.79x = 628,713,646.45
  5. Step 5: Solve for x
    x = 628,713,646.45/28,649.79
  6. Step 6: Final answer
    x = 21,944.79

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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.