Home / 25,416.87-38,126.53-12,280.29

Finding the Fourth Proportional to 25,416.87, 38,126.53 and 12,280.29

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Solution

The fourth proportional to 25,416.87, 38,126.53 and 12,280.29 is: 18,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,416.87 : 38,126.53 = 12,280.29 : x
  2. Step 2: Convert to fraction form
    25,416.87/38,126.53 = 12,280.29/x
  3. Step 3: Cross multiply
    25,416.87x = 38,126.53 × 12,280.29
  4. Step 4: Simplify right side
    25,416.87x = 468,204,879.01
  5. Step 5: Solve for x
    x = 468,204,879.01/25,416.87
  6. Step 6: Final answer
    x = 18,421.03

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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.