Home / 20,744.24-31,106.63-7,587.41

Finding the Fourth Proportional to 20,744.24, 31,106.63 and 7,587.41

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Solution

The fourth proportional to 20,744.24, 31,106.63 and 7,587.41 is: 11,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.24 : 31,106.63 = 7,587.41 : x
  2. Step 2: Convert to fraction form
    20,744.24/31,106.63 = 7,587.41/x
  3. Step 3: Cross multiply
    20,744.24x = 31,106.63 × 7,587.41
  4. Step 4: Simplify right side
    20,744.24x = 236,018,618.96
  5. Step 5: Solve for x
    x = 236,018,618.96/20,744.24
  6. Step 6: Final answer
    x = 11,377.55

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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.