Home / 25,293.75-34,905.51-14,115.75

Finding the Fourth Proportional to 25,293.75, 34,905.51 and 14,115.75

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Solution

The fourth proportional to 25,293.75, 34,905.51 and 14,115.75 is: 19,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,293.75 : 34,905.51 = 14,115.75 : x
  2. Step 2: Convert to fraction form
    25,293.75/34,905.51 = 14,115.75/x
  3. Step 3: Cross multiply
    25,293.75x = 34,905.51 × 14,115.75
  4. Step 4: Simplify right side
    25,293.75x = 492,717,452.78
  5. Step 5: Solve for x
    x = 492,717,452.78/25,293.75
  6. Step 6: Final answer
    x = 19,479.81

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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.