Home / 25,886.38-38,829.58-20,667.82

Finding the Fourth Proportional to 25,886.38, 38,829.58 and 20,667.82

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Solution

The fourth proportional to 25,886.38, 38,829.58 and 20,667.82 is: 31,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.38 : 38,829.58 = 20,667.82 : x
  2. Step 2: Convert to fraction form
    25,886.38/38,829.58 = 20,667.82/x
  3. Step 3: Cross multiply
    25,886.38x = 38,829.58 × 20,667.82
  4. Step 4: Simplify right side
    25,886.38x = 802,522,770.12
  5. Step 5: Solve for x
    x = 802,522,770.12/25,886.38
  6. Step 6: Final answer
    x = 31,001.74

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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.