Home / 25,138.83-34,690.64-13,961.55

Finding the Fourth Proportional to 25,138.83, 34,690.64 and 13,961.55

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Solution

The fourth proportional to 25,138.83, 34,690.64 and 13,961.55 is: 19,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.83 : 34,690.64 = 13,961.55 : x
  2. Step 2: Convert to fraction form
    25,138.83/34,690.64 = 13,961.55/x
  3. Step 3: Cross multiply
    25,138.83x = 34,690.64 × 13,961.55
  4. Step 4: Simplify right side
    25,138.83x = 484,335,035.08
  5. Step 5: Solve for x
    x = 484,335,035.08/25,138.83
  6. Step 6: Final answer
    x = 19,266.41

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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.