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Finding the Fourth Proportional to 22,928.40, 34,392.60 and 20,960.10

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Solution

The fourth proportional to 22,928.40, 34,392.60 and 20,960.10 is: 31,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,928.40 : 34,392.60 = 20,960.10 : x
  2. Step 2: Convert to fraction form
    22,928.40/34,392.60 = 20,960.10/x
  3. Step 3: Cross multiply
    22,928.40x = 34,392.60 × 20,960.10
  4. Step 4: Simplify right side
    22,928.40x = 720,872,335.26
  5. Step 5: Solve for x
    x = 720,872,335.26/22,928.40
  6. Step 6: Final answer
    x = 31,440.15

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1.5x scale

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.