Home / 36,079.16-49,789.35-20,972.12

Finding the Fourth Proportional to 36,079.16, 49,789.35 and 20,972.12

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Solution

The fourth proportional to 36,079.16, 49,789.35 and 20,972.12 is: 28,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079.16 : 49,789.35 = 20,972.12 : x
  2. Step 2: Convert to fraction form
    36,079.16/49,789.35 = 20,972.12/x
  3. Step 3: Cross multiply
    36,079.16x = 49,789.35 × 20,972.12
  4. Step 4: Simplify right side
    36,079.16x = 1,044,187,973.98
  5. Step 5: Solve for x
    x = 1,044,187,973.98/36,079.16
  6. Step 6: Final answer
    x = 28,941.59

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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.