Home / 43,140.39-64,638.78-15,044.95

Finding the Fourth Proportional to 43,140.39, 64,638.78 and 15,044.95

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Solution

The fourth proportional to 43,140.39, 64,638.78 and 15,044.95 is: 22,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.39 : 64,638.78 = 15,044.95 : x
  2. Step 2: Convert to fraction form
    43,140.39/64,638.78 = 15,044.95/x
  3. Step 3: Cross multiply
    43,140.39x = 64,638.78 × 15,044.95
  4. Step 4: Simplify right side
    43,140.39x = 972,487,213.16
  5. Step 5: Solve for x
    x = 972,487,213.16/43,140.39
  6. Step 6: Final answer
    x = 22,542.38

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1.5x scale

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.