Home / 25,239.50-34,830.36-13,908.75

Finding the Fourth Proportional to 25,239.50, 34,830.36 and 13,908.75

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Solution

The fourth proportional to 25,239.50, 34,830.36 and 13,908.75 is: 19,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,239.50 : 34,830.36 = 13,908.75 : x
  2. Step 2: Convert to fraction form
    25,239.50/34,830.36 = 13,908.75/x
  3. Step 3: Cross multiply
    25,239.50x = 34,830.36 × 13,908.75
  4. Step 4: Simplify right side
    25,239.50x = 484,446,769.65
  5. Step 5: Solve for x
    x = 484,446,769.65/25,239.50
  6. Step 6: Final answer
    x = 19,193.99

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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.