Home / 23,318.10-34,977.15-20,912.40

Finding the Fourth Proportional to 23,318.10, 34,977.15 and 20,912.40

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Solution

The fourth proportional to 23,318.10, 34,977.15 and 20,912.40 is: 31,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,318.10 : 34,977.15 = 20,912.40 : x
  2. Step 2: Convert to fraction form
    23,318.10/34,977.15 = 20,912.40/x
  3. Step 3: Cross multiply
    23,318.10x = 34,977.15 × 20,912.40
  4. Step 4: Simplify right side
    23,318.10x = 731,456,151.66
  5. Step 5: Solve for x
    x = 731,456,151.66/23,318.10
  6. Step 6: Final answer
    x = 31,368.60

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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.