Home / 25,855.29-35,684.15-15,789.57

Finding the Fourth Proportional to 25,855.29, 35,684.15 and 15,789.57

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Solution

The fourth proportional to 25,855.29, 35,684.15 and 15,789.57 is: 21,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,855.29 : 35,684.15 = 15,789.57 : x
  2. Step 2: Convert to fraction form
    25,855.29/35,684.15 = 15,789.57/x
  3. Step 3: Cross multiply
    25,855.29x = 35,684.15 × 15,789.57
  4. Step 4: Simplify right side
    25,855.29x = 563,437,384.32
  5. Step 5: Solve for x
    x = 563,437,384.32/25,855.29
  6. Step 6: Final answer
    x = 21,791.96

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1.5x scale

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.