Home / 22,266.88-30,731.66-12,706.72

Finding the Fourth Proportional to 22,266.88, 30,731.66 and 12,706.72

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Solution

The fourth proportional to 22,266.88, 30,731.66 and 12,706.72 is: 17,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.88 : 30,731.66 = 12,706.72 : x
  2. Step 2: Convert to fraction form
    22,266.88/30,731.66 = 12,706.72/x
  3. Step 3: Cross multiply
    22,266.88x = 30,731.66 × 12,706.72
  4. Step 4: Simplify right side
    22,266.88x = 390,498,598.76
  5. Step 5: Solve for x
    x = 390,498,598.76/22,266.88
  6. Step 6: Final answer
    x = 17,537.19

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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.