Home / 43,148.17-64,721.71-11,983.15

Finding the Fourth Proportional to 43,148.17, 64,721.71 and 11,983.15

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Solution

The fourth proportional to 43,148.17, 64,721.71 and 11,983.15 is: 17,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,148.17 : 64,721.71 = 11,983.15 : x
  2. Step 2: Convert to fraction form
    43,148.17/64,721.71 = 11,983.15/x
  3. Step 3: Cross multiply
    43,148.17x = 64,721.71 × 11,983.15
  4. Step 4: Simplify right side
    43,148.17x = 775,569,959.19
  5. Step 5: Solve for x
    x = 775,569,959.19/43,148.17
  6. Step 6: Final answer
    x = 17,974.57

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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.