Home / 47,721.43-71,582.07-12,182.75

Finding the Fourth Proportional to 47,721.43, 71,582.07 and 12,182.75

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Solution

The fourth proportional to 47,721.43, 71,582.07 and 12,182.75 is: 18,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.43 : 71,582.07 = 12,182.75 : x
  2. Step 2: Convert to fraction form
    47,721.43/71,582.07 = 12,182.75/x
  3. Step 3: Cross multiply
    47,721.43x = 71,582.07 × 12,182.75
  4. Step 4: Simplify right side
    47,721.43x = 872,066,463.29
  5. Step 5: Solve for x
    x = 872,066,463.29/47,721.43
  6. Step 6: Final answer
    x = 18,274.11

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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.