Home / 25,870.34-35,701.20-15,115.83

Finding the Fourth Proportional to 25,870.34, 35,701.20 and 15,115.83

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Solution

The fourth proportional to 25,870.34, 35,701.20 and 15,115.83 is: 20,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.34 : 35,701.20 = 15,115.83 : x
  2. Step 2: Convert to fraction form
    25,870.34/35,701.20 = 15,115.83/x
  3. Step 3: Cross multiply
    25,870.34x = 35,701.20 × 15,115.83
  4. Step 4: Simplify right side
    25,870.34x = 539,653,270.00
  5. Step 5: Solve for x
    x = 539,653,270.00/25,870.34
  6. Step 6: Final answer
    x = 20,859.93

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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.