Home / 21,276.59-31,918.35-6,285.23

Finding the Fourth Proportional to 21,276.59, 31,918.35 and 6,285.23

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Solution

The fourth proportional to 21,276.59, 31,918.35 and 6,285.23 is: 9,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.59 : 31,918.35 = 6,285.23 : x
  2. Step 2: Convert to fraction form
    21,276.59/31,918.35 = 6,285.23/x
  3. Step 3: Cross multiply
    21,276.59x = 31,918.35 × 6,285.23
  4. Step 4: Simplify right side
    21,276.59x = 200,614,170.97
  5. Step 5: Solve for x
    x = 200,614,170.97/21,276.59
  6. Step 6: Final answer
    x = 9,428.87

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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.