Home / 25,187.16-37,742.47-12,021.42

Finding the Fourth Proportional to 25,187.16, 37,742.47 and 12,021.42

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Solution

The fourth proportional to 25,187.16, 37,742.47 and 12,021.42 is: 18,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.16 : 37,742.47 = 12,021.42 : x
  2. Step 2: Convert to fraction form
    25,187.16/37,742.47 = 12,021.42/x
  3. Step 3: Cross multiply
    25,187.16x = 37,742.47 × 12,021.42
  4. Step 4: Simplify right side
    25,187.16x = 453,718,195.19
  5. Step 5: Solve for x
    x = 453,718,195.19/25,187.16
  6. Step 6: Final answer
    x = 18,013.87

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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.