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Finding the Fourth Proportional to 39,143.50, 54,018.03 and 22,376.86

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Solution

The fourth proportional to 39,143.50, 54,018.03 and 22,376.86 is: 30,880.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.50 : 54,018.03 = 22,376.86 : x
  2. Step 2: Convert to fraction form
    39,143.50/54,018.03 = 22,376.86/x
  3. Step 3: Cross multiply
    39,143.50x = 54,018.03 × 22,376.86
  4. Step 4: Simplify right side
    39,143.50x = 1,208,753,894.79
  5. Step 5: Solve for x
    x = 1,208,753,894.79/39,143.50
  6. Step 6: Final answer
    x = 30,880.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.