Home / 25,836.78-38,749.80-11,792.88

Finding the Fourth Proportional to 25,836.78, 38,749.80 and 11,792.88

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Solution

The fourth proportional to 25,836.78, 38,749.80 and 11,792.88 is: 17,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,836.78 : 38,749.80 = 11,792.88 : x
  2. Step 2: Convert to fraction form
    25,836.78/38,749.80 = 11,792.88/x
  3. Step 3: Cross multiply
    25,836.78x = 38,749.80 × 11,792.88
  4. Step 4: Simplify right side
    25,836.78x = 456,971,741.42
  5. Step 5: Solve for x
    x = 456,971,741.42/25,836.78
  6. Step 6: Final answer
    x = 17,686.87

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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.