Home / 33,139.76-49,644.04-21,461.20

Finding the Fourth Proportional to 33,139.76, 49,644.04 and 21,461.20

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Solution

The fourth proportional to 33,139.76, 49,644.04 and 21,461.20 is: 32,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.76 : 49,644.04 = 21,461.20 : x
  2. Step 2: Convert to fraction form
    33,139.76/49,644.04 = 21,461.20/x
  3. Step 3: Cross multiply
    33,139.76x = 49,644.04 × 21,461.20
  4. Step 4: Simplify right side
    33,139.76x = 1,065,420,671.25
  5. Step 5: Solve for x
    x = 1,065,420,671.25/33,139.76
  6. Step 6: Final answer
    x = 32,149.32

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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.