Home / 20,888.91-31,296.90-17,401.33

Finding the Fourth Proportional to 20,888.91, 31,296.90 and 17,401.33

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Solution

The fourth proportional to 20,888.91, 31,296.90 and 17,401.33 is: 26,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.91 : 31,296.90 = 17,401.33 : x
  2. Step 2: Convert to fraction form
    20,888.91/31,296.90 = 17,401.33/x
  3. Step 3: Cross multiply
    20,888.91x = 31,296.90 × 17,401.33
  4. Step 4: Simplify right side
    20,888.91x = 544,607,684.88
  5. Step 5: Solve for x
    x = 544,607,684.88/20,888.91
  6. Step 6: Final answer
    x = 26,071.62

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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.