Home / 25,707.40-38,570.70-10,135.88

Finding the Fourth Proportional to 25,707.40, 38,570.70 and 10,135.88

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Solution

The fourth proportional to 25,707.40, 38,570.70 and 10,135.88 is: 15,207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.40 : 38,570.70 = 10,135.88 : x
  2. Step 2: Convert to fraction form
    25,707.40/38,570.70 = 10,135.88/x
  3. Step 3: Cross multiply
    25,707.40x = 38,570.70 × 10,135.88
  4. Step 4: Simplify right side
    25,707.40x = 390,947,986.72
  5. Step 5: Solve for x
    x = 390,947,986.72/25,707.40
  6. Step 6: Final answer
    x = 15,207.61

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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.