Home / 39,414.79-54,392.60-21,510.17

Finding the Fourth Proportional to 39,414.79, 54,392.60 and 21,510.17

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Solution

The fourth proportional to 39,414.79, 54,392.60 and 21,510.17 is: 29,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,414.79 : 54,392.60 = 21,510.17 : x
  2. Step 2: Convert to fraction form
    39,414.79/54,392.60 = 21,510.17/x
  3. Step 3: Cross multiply
    39,414.79x = 54,392.60 × 21,510.17
  4. Step 4: Simplify right side
    39,414.79x = 1,169,994,243.49
  5. Step 5: Solve for x
    x = 1,169,994,243.49/39,414.79
  6. Step 6: Final answer
    x = 29,684.15

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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.