Home / 25,061.65-34,583.61-13,728.90

Finding the Fourth Proportional to 25,061.65, 34,583.61 and 13,728.90

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Solution

The fourth proportional to 25,061.65, 34,583.61 and 13,728.90 is: 18,945.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,061.65 : 34,583.61 = 13,728.90 : x
  2. Step 2: Convert to fraction form
    25,061.65/34,583.61 = 13,728.90/x
  3. Step 3: Cross multiply
    25,061.65x = 34,583.61 × 13,728.90
  4. Step 4: Simplify right side
    25,061.65x = 474,794,750.41
  5. Step 5: Solve for x
    x = 474,794,750.41/25,061.65
  6. Step 6: Final answer
    x = 18,945.07

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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.