Home / 15,231.41-22,791.71-12,574.20

Finding the Fourth Proportional to 15,231.41, 22,791.71 and 12,574.20

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Solution

The fourth proportional to 15,231.41, 22,791.71 and 12,574.20 is: 18,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.41 : 22,791.71 = 12,574.20 : x
  2. Step 2: Convert to fraction form
    15,231.41/22,791.71 = 12,574.20/x
  3. Step 3: Cross multiply
    15,231.41x = 22,791.71 × 12,574.20
  4. Step 4: Simplify right side
    15,231.41x = 286,587,551.32
  5. Step 5: Solve for x
    x = 286,587,551.32/15,231.41
  6. Step 6: Final answer
    x = 18,815.57

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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.