Home / 28,694.42-39,598.27-15,947.21

Finding the Fourth Proportional to 28,694.42, 39,598.27 and 15,947.21

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Solution

The fourth proportional to 28,694.42, 39,598.27 and 15,947.21 is: 22,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.42 : 39,598.27 = 15,947.21 : x
  2. Step 2: Convert to fraction form
    28,694.42/39,598.27 = 15,947.21/x
  3. Step 3: Cross multiply
    28,694.42x = 39,598.27 × 15,947.21
  4. Step 4: Simplify right side
    28,694.42x = 631,481,649.60
  5. Step 5: Solve for x
    x = 631,481,649.60/28,694.42
  6. Step 6: Final answer
    x = 22,007.12

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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.