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Finding the Fourth Proportional to 23,351.70, 34,990.02 and 13,969.20

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Solution

The fourth proportional to 23,351.70, 34,990.02 and 13,969.20 is: 20,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,351.70 : 34,990.02 = 13,969.20 : x
  2. Step 2: Convert to fraction form
    23,351.70/34,990.02 = 13,969.20/x
  3. Step 3: Cross multiply
    23,351.70x = 34,990.02 × 13,969.20
  4. Step 4: Simplify right side
    23,351.70x = 488,782,587.38
  5. Step 5: Solve for x
    x = 488,782,587.38/23,351.70
  6. Step 6: Final answer
    x = 20,931.35

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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.