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Finding the Fourth Proportional to 23,064.40, 34,661.40 and 20,213.20

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Solution

The fourth proportional to 23,064.40, 34,661.40 and 20,213.20 is: 30,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,064.40 : 34,661.40 = 20,213.20 : x
  2. Step 2: Convert to fraction form
    23,064.40/34,661.40 = 20,213.20/x
  3. Step 3: Cross multiply
    23,064.40x = 34,661.40 × 20,213.20
  4. Step 4: Simplify right side
    23,064.40x = 700,617,810.48
  5. Step 5: Solve for x
    x = 700,617,810.48/23,064.40
  6. Step 6: Final answer
    x = 30,376.59

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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.