Home / 21,332.31-29,436.25-15,033.75

Finding the Fourth Proportional to 21,332.31, 29,436.25 and 15,033.75

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Solution

The fourth proportional to 21,332.31, 29,436.25 and 15,033.75 is: 20,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.31 : 29,436.25 = 15,033.75 : x
  2. Step 2: Convert to fraction form
    21,332.31/29,436.25 = 15,033.75/x
  3. Step 3: Cross multiply
    21,332.31x = 29,436.25 × 15,033.75
  4. Step 4: Simplify right side
    21,332.31x = 442,537,223.44
  5. Step 5: Solve for x
    x = 442,537,223.44/21,332.31
  6. Step 6: Final answer
    x = 20,744.93

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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.