Home / 25,079.16-34,609.64-13,749.76

Finding the Fourth Proportional to 25,079.16, 34,609.64 and 13,749.76

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Solution

The fourth proportional to 25,079.16, 34,609.64 and 13,749.76 is: 18,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,079.16 : 34,609.64 = 13,749.76 : x
  2. Step 2: Convert to fraction form
    25,079.16/34,609.64 = 13,749.76/x
  3. Step 3: Cross multiply
    25,079.16x = 34,609.64 × 13,749.76
  4. Step 4: Simplify right side
    25,079.16x = 475,874,243.69
  5. Step 5: Solve for x
    x = 475,874,243.69/25,079.16
  6. Step 6: Final answer
    x = 18,974.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.