Home / 25,791.52-35,612.40-19,813.72

Finding the Fourth Proportional to 25,791.52, 35,612.40 and 19,813.72

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Solution

The fourth proportional to 25,791.52, 35,612.40 and 19,813.72 is: 27,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,791.52 : 35,612.40 = 19,813.72 : x
  2. Step 2: Convert to fraction form
    25,791.52/35,612.40 = 19,813.72/x
  3. Step 3: Cross multiply
    25,791.52x = 35,612.40 × 19,813.72
  4. Step 4: Simplify right side
    25,791.52x = 705,614,122.13
  5. Step 5: Solve for x
    x = 705,614,122.13/25,791.52
  6. Step 6: Final answer
    x = 27,358.38

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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.