Home / 25,110.39-34,639.14-19,131.68

Finding the Fourth Proportional to 25,110.39, 34,639.14 and 19,131.68

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Solution

The fourth proportional to 25,110.39, 34,639.14 and 19,131.68 is: 26,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,110.39 : 34,639.14 = 19,131.68 : x
  2. Step 2: Convert to fraction form
    25,110.39/34,639.14 = 19,131.68/x
  3. Step 3: Cross multiply
    25,110.39x = 34,639.14 × 19,131.68
  4. Step 4: Simplify right side
    25,110.39x = 662,704,941.96
  5. Step 5: Solve for x
    x = 662,704,941.96/25,110.39
  6. Step 6: Final answer
    x = 26,391.66

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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.