Home / 25,401.33-38,070-18,007.65

Finding the Fourth Proportional to 25,401.33, 38,070 and 18,007.65

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Solution

The fourth proportional to 25,401.33, 38,070 and 18,007.65 is: 26,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.33 : 38,070 = 18,007.65 : x
  2. Step 2: Convert to fraction form
    25,401.33/38,070 = 18,007.65/x
  3. Step 3: Cross multiply
    25,401.33x = 38,070 × 18,007.65
  4. Step 4: Simplify right side
    25,401.33x = 685,551,235.50
  5. Step 5: Solve for x
    x = 685,551,235.50/25,401.33
  6. Step 6: Final answer
    x = 26,988.79

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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.