Home / 22,587.21-31,169.52-12,516.09

Finding the Fourth Proportional to 22,587.21, 31,169.52 and 12,516.09

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Solution

The fourth proportional to 22,587.21, 31,169.52 and 12,516.09 is: 17,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.21 : 31,169.52 = 12,516.09 : x
  2. Step 2: Convert to fraction form
    22,587.21/31,169.52 = 12,516.09/x
  3. Step 3: Cross multiply
    22,587.21x = 31,169.52 × 12,516.09
  4. Step 4: Simplify right side
    22,587.21x = 390,120,517.58
  5. Step 5: Solve for x
    x = 390,120,517.58/22,587.21
  6. Step 6: Final answer
    x = 17,271.74

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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.