Home / 25,718.78-38,581.26-9,075.38

Finding the Fourth Proportional to 25,718.78, 38,581.26 and 9,075.38

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Solution

The fourth proportional to 25,718.78, 38,581.26 and 9,075.38 is: 13,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.78 : 38,581.26 = 9,075.38 : x
  2. Step 2: Convert to fraction form
    25,718.78/38,581.26 = 9,075.38/x
  3. Step 3: Cross multiply
    25,718.78x = 38,581.26 × 9,075.38
  4. Step 4: Simplify right side
    25,718.78x = 350,139,357.10
  5. Step 5: Solve for x
    x = 350,139,357.10/25,718.78
  6. Step 6: Final answer
    x = 13,614.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.