Home / 36,079.40-49,788.12-20,971.34

Finding the Fourth Proportional to 36,079.40, 49,788.12 and 20,971.34

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Solution

The fourth proportional to 36,079.40, 49,788.12 and 20,971.34 is: 28,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079.40 : 49,788.12 = 20,971.34 : x
  2. Step 2: Convert to fraction form
    36,079.40/49,788.12 = 20,971.34/x
  3. Step 3: Cross multiply
    36,079.40x = 49,788.12 × 20,971.34
  4. Step 4: Simplify right side
    36,079.40x = 1,044,123,592.48
  5. Step 5: Solve for x
    x = 1,044,123,592.48/36,079.40
  6. Step 6: Final answer
    x = 28,939.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.