Home / 21,167.01-31,750.97-7,127.46

Finding the Fourth Proportional to 21,167.01, 31,750.97 and 7,127.46

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Solution

The fourth proportional to 21,167.01, 31,750.97 and 7,127.46 is: 10,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.01 : 31,750.97 = 7,127.46 : x
  2. Step 2: Convert to fraction form
    21,167.01/31,750.97 = 7,127.46/x
  3. Step 3: Cross multiply
    21,167.01x = 31,750.97 × 7,127.46
  4. Step 4: Simplify right side
    21,167.01x = 226,303,733.00
  5. Step 5: Solve for x
    x = 226,303,733.00/21,167.01
  6. Step 6: Final answer
    x = 10,691.34

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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.