Home / 25,318.95-34,939.66-13,988.58

Finding the Fourth Proportional to 25,318.95, 34,939.66 and 13,988.58

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Solution

The fourth proportional to 25,318.95, 34,939.66 and 13,988.58 is: 19,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.95 : 34,939.66 = 13,988.58 : x
  2. Step 2: Convert to fraction form
    25,318.95/34,939.66 = 13,988.58/x
  3. Step 3: Cross multiply
    25,318.95x = 34,939.66 × 13,988.58
  4. Step 4: Simplify right side
    25,318.95x = 488,756,229.08
  5. Step 5: Solve for x
    x = 488,756,229.08/25,318.95
  6. Step 6: Final answer
    x = 19,303.97

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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.