Home / 25,561.44-38,286.74-12,386.20

Finding the Fourth Proportional to 25,561.44, 38,286.74 and 12,386.20

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Solution

The fourth proportional to 25,561.44, 38,286.74 and 12,386.20 is: 18,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,561.44 : 38,286.74 = 12,386.20 : x
  2. Step 2: Convert to fraction form
    25,561.44/38,286.74 = 12,386.20/x
  3. Step 3: Cross multiply
    25,561.44x = 38,286.74 × 12,386.20
  4. Step 4: Simplify right side
    25,561.44x = 474,227,218.99
  5. Step 5: Solve for x
    x = 474,227,218.99/25,561.44
  6. Step 6: Final answer
    x = 18,552.45

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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.