Home / 25,275.42-34,879.75-13,945.39

Finding the Fourth Proportional to 25,275.42, 34,879.75 and 13,945.39

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Solution

The fourth proportional to 25,275.42, 34,879.75 and 13,945.39 is: 19,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,275.42 : 34,879.75 = 13,945.39 : x
  2. Step 2: Convert to fraction form
    25,275.42/34,879.75 = 13,945.39/x
  3. Step 3: Cross multiply
    25,275.42x = 34,879.75 × 13,945.39
  4. Step 4: Simplify right side
    25,275.42x = 486,411,716.85
  5. Step 5: Solve for x
    x = 486,411,716.85/25,275.42
  6. Step 6: Final answer
    x = 19,244.46

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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.