Home / 21,105.04-31,658.61-6,314.08

Finding the Fourth Proportional to 21,105.04, 31,658.61 and 6,314.08

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Solution

The fourth proportional to 21,105.04, 31,658.61 and 6,314.08 is: 9,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,105.04 : 31,658.61 = 6,314.08 : x
  2. Step 2: Convert to fraction form
    21,105.04/31,658.61 = 6,314.08/x
  3. Step 3: Cross multiply
    21,105.04x = 31,658.61 × 6,314.08
  4. Step 4: Simplify right side
    21,105.04x = 199,894,837.94
  5. Step 5: Solve for x
    x = 199,894,837.94/21,105.04
  6. Step 6: Final answer
    x = 9,471.43

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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.