Home / 21,245.52-31,868.27-6,454.38

Finding the Fourth Proportional to 21,245.52, 31,868.27 and 6,454.38

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Solution

The fourth proportional to 21,245.52, 31,868.27 and 6,454.38 is: 9,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.52 : 31,868.27 = 6,454.38 : x
  2. Step 2: Convert to fraction form
    21,245.52/31,868.27 = 6,454.38/x
  3. Step 3: Cross multiply
    21,245.52x = 31,868.27 × 6,454.38
  4. Step 4: Simplify right side
    21,245.52x = 205,689,924.52
  5. Step 5: Solve for x
    x = 205,689,924.52/21,245.52
  6. Step 6: Final answer
    x = 9,681.57

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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.