Home / 21,013.71-31,525.18-6,223.79

Finding the Fourth Proportional to 21,013.71, 31,525.18 and 6,223.79

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Solution

The fourth proportional to 21,013.71, 31,525.18 and 6,223.79 is: 9,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013.71 : 31,525.18 = 6,223.79 : x
  2. Step 2: Convert to fraction form
    21,013.71/31,525.18 = 6,223.79/x
  3. Step 3: Cross multiply
    21,013.71x = 31,525.18 × 6,223.79
  4. Step 4: Simplify right side
    21,013.71x = 196,205,926.85
  5. Step 5: Solve for x
    x = 196,205,926.85/21,013.71
  6. Step 6: Final answer
    x = 9,337.04

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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.