Home / 28,039.52-38,694.70-15,464.28

Finding the Fourth Proportional to 28,039.52, 38,694.70 and 15,464.28

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Solution

The fourth proportional to 28,039.52, 38,694.70 and 15,464.28 is: 21,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.52 : 38,694.70 = 15,464.28 : x
  2. Step 2: Convert to fraction form
    28,039.52/38,694.70 = 15,464.28/x
  3. Step 3: Cross multiply
    28,039.52x = 38,694.70 × 15,464.28
  4. Step 4: Simplify right side
    28,039.52x = 598,385,675.32
  5. Step 5: Solve for x
    x = 598,385,675.32/28,039.52
  6. Step 6: Final answer
    x = 21,340.80

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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.