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Finding the Fourth Proportional to 39,752.46, 54,859.71 and 21,848.10

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Solution

The fourth proportional to 39,752.46, 54,859.71 and 21,848.10 is: 30,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.46 : 54,859.71 = 21,848.10 : x
  2. Step 2: Convert to fraction form
    39,752.46/54,859.71 = 21,848.10/x
  3. Step 3: Cross multiply
    39,752.46x = 54,859.71 × 21,848.10
  4. Step 4: Simplify right side
    39,752.46x = 1,198,580,430.05
  5. Step 5: Solve for x
    x = 1,198,580,430.05/39,752.46
  6. Step 6: Final answer
    x = 30,151.10

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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.