Home / 22,687.93-31,307.20-21,016.09

Finding the Fourth Proportional to 22,687.93, 31,307.20 and 21,016.09

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Solution

The fourth proportional to 22,687.93, 31,307.20 and 21,016.09 is: 29,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.93 : 31,307.20 = 21,016.09 : x
  2. Step 2: Convert to fraction form
    22,687.93/31,307.20 = 21,016.09/x
  3. Step 3: Cross multiply
    22,687.93x = 31,307.20 × 21,016.09
  4. Step 4: Simplify right side
    22,687.93x = 657,954,932.85
  5. Step 5: Solve for x
    x = 657,954,932.85/22,687.93
  6. Step 6: Final answer
    x = 29,000.22

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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.