Home / 20,689.68-31,035.71-5,897.46

Finding the Fourth Proportional to 20,689.68, 31,035.71 and 5,897.46

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Solution

The fourth proportional to 20,689.68, 31,035.71 and 5,897.46 is: 8,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.68 : 31,035.71 = 5,897.46 : x
  2. Step 2: Convert to fraction form
    20,689.68/31,035.71 = 5,897.46/x
  3. Step 3: Cross multiply
    20,689.68x = 31,035.71 × 5,897.46
  4. Step 4: Simplify right side
    20,689.68x = 183,031,781.68
  5. Step 5: Solve for x
    x = 183,031,781.68/20,689.68
  6. Step 6: Final answer
    x = 8,846.53

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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.