Home / 25,318.17-34,964.66-20,315.41

Finding the Fourth Proportional to 25,318.17, 34,964.66 and 20,315.41

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Solution

The fourth proportional to 25,318.17, 34,964.66 and 20,315.41 is: 28,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.17 : 34,964.66 = 20,315.41 : x
  2. Step 2: Convert to fraction form
    25,318.17/34,964.66 = 20,315.41/x
  3. Step 3: Cross multiply
    25,318.17x = 34,964.66 × 20,315.41
  4. Step 4: Simplify right side
    25,318.17x = 710,321,366.79
  5. Step 5: Solve for x
    x = 710,321,366.79/25,318.17
  6. Step 6: Final answer
    x = 28,055.79

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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.