Home / 21,470.16-32,205.28-17,290.56

Finding the Fourth Proportional to 21,470.16, 32,205.28 and 17,290.56

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Solution

The fourth proportional to 21,470.16, 32,205.28 and 17,290.56 is: 25,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.16 : 32,205.28 = 17,290.56 : x
  2. Step 2: Convert to fraction form
    21,470.16/32,205.28 = 17,290.56/x
  3. Step 3: Cross multiply
    21,470.16x = 32,205.28 × 17,290.56
  4. Step 4: Simplify right side
    21,470.16x = 556,847,326.16
  5. Step 5: Solve for x
    x = 556,847,326.16/21,470.16
  6. Step 6: Final answer
    x = 25,935.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.