Home / 25,405.32-38,109.18-12,268.74

Finding the Fourth Proportional to 25,405.32, 38,109.18 and 12,268.74

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Solution

The fourth proportional to 25,405.32, 38,109.18 and 12,268.74 is: 18,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.32 : 38,109.18 = 12,268.74 : x
  2. Step 2: Convert to fraction form
    25,405.32/38,109.18 = 12,268.74/x
  3. Step 3: Cross multiply
    25,405.32x = 38,109.18 × 12,268.74
  4. Step 4: Simplify right side
    25,405.32x = 467,551,621.03
  5. Step 5: Solve for x
    x = 467,551,621.03/25,405.32
  6. Step 6: Final answer
    x = 18,403.69

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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.