Home / 25,470.12-38,185.36-12,136.20

Finding the Fourth Proportional to 25,470.12, 38,185.36 and 12,136.20

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Solution

The fourth proportional to 25,470.12, 38,185.36 and 12,136.20 is: 18,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470.12 : 38,185.36 = 12,136.20 : x
  2. Step 2: Convert to fraction form
    25,470.12/38,185.36 = 12,136.20/x
  3. Step 3: Cross multiply
    25,470.12x = 38,185.36 × 12,136.20
  4. Step 4: Simplify right side
    25,470.12x = 463,425,166.03
  5. Step 5: Solve for x
    x = 463,425,166.03/25,470.12
  6. Step 6: Final answer
    x = 18,194.86

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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.