Home / 15,033.12-20,731.92-12,907.93

Finding the Fourth Proportional to 15,033.12, 20,731.92 and 12,907.93

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Solution

The fourth proportional to 15,033.12, 20,731.92 and 12,907.93 is: 17,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.12 : 20,731.92 = 12,907.93 : x
  2. Step 2: Convert to fraction form
    15,033.12/20,731.92 = 12,907.93/x
  3. Step 3: Cross multiply
    15,033.12x = 20,731.92 × 12,907.93
  4. Step 4: Simplify right side
    15,033.12x = 267,606,277.98
  5. Step 5: Solve for x
    x = 267,606,277.98/15,033.12
  6. Step 6: Final answer
    x = 17,801.11

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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.