Home / 23,040.12-31,808.93-21,711.54

Finding the Fourth Proportional to 23,040.12, 31,808.93 and 21,711.54

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Solution

The fourth proportional to 23,040.12, 31,808.93 and 21,711.54 is: 29,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,040.12 : 31,808.93 = 21,711.54 : x
  2. Step 2: Convert to fraction form
    23,040.12/31,808.93 = 21,711.54/x
  3. Step 3: Cross multiply
    23,040.12x = 31,808.93 × 21,711.54
  4. Step 4: Simplify right side
    23,040.12x = 690,620,747.49
  5. Step 5: Solve for x
    x = 690,620,747.49/23,040.12
  6. Step 6: Final answer
    x = 29,974.70

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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.