Home / 25,878.87-35,715.12-15,266.43

Finding the Fourth Proportional to 25,878.87, 35,715.12 and 15,266.43

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Solution

The fourth proportional to 25,878.87, 35,715.12 and 15,266.43 is: 21,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.87 : 35,715.12 = 15,266.43 : x
  2. Step 2: Convert to fraction form
    25,878.87/35,715.12 = 15,266.43/x
  3. Step 3: Cross multiply
    25,878.87x = 35,715.12 × 15,266.43
  4. Step 4: Simplify right side
    25,878.87x = 545,242,379.42
  5. Step 5: Solve for x
    x = 545,242,379.42/25,878.87
  6. Step 6: Final answer
    x = 21,069.02

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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.