Home / 43,220.76-64,838.98-21,034.14

Finding the Fourth Proportional to 43,220.76, 64,838.98 and 21,034.14

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Solution

The fourth proportional to 43,220.76, 64,838.98 and 21,034.14 is: 31,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,220.76 : 64,838.98 = 21,034.14 : x
  2. Step 2: Convert to fraction form
    43,220.76/64,838.98 = 21,034.14/x
  3. Step 3: Cross multiply
    43,220.76x = 64,838.98 × 21,034.14
  4. Step 4: Simplify right side
    43,220.76x = 1,363,832,182.78
  5. Step 5: Solve for x
    x = 1,363,832,182.78/43,220.76
  6. Step 6: Final answer
    x = 31,555.03

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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.