Home / 21,000.97-31,501.45-5,417.38

Finding the Fourth Proportional to 21,000.97, 31,501.45 and 5,417.38

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Solution

The fourth proportional to 21,000.97, 31,501.45 and 5,417.38 is: 8,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.97 : 31,501.45 = 5,417.38 : x
  2. Step 2: Convert to fraction form
    21,000.97/31,501.45 = 5,417.38/x
  3. Step 3: Cross multiply
    21,000.97x = 31,501.45 × 5,417.38
  4. Step 4: Simplify right side
    21,000.97x = 170,655,167.69
  5. Step 5: Solve for x
    x = 170,655,167.69/21,000.97
  6. Step 6: Final answer
    x = 8,126.06

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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.