Home / 25,455.81-38,189.24-10,657.11

Finding the Fourth Proportional to 25,455.81, 38,189.24 and 10,657.11

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Solution

The fourth proportional to 25,455.81, 38,189.24 and 10,657.11 is: 15,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.81 : 38,189.24 = 10,657.11 : x
  2. Step 2: Convert to fraction form
    25,455.81/38,189.24 = 10,657.11/x
  3. Step 3: Cross multiply
    25,455.81x = 38,189.24 × 10,657.11
  4. Step 4: Simplify right side
    25,455.81x = 406,986,878.21
  5. Step 5: Solve for x
    x = 406,986,878.21/25,455.81
  6. Step 6: Final answer
    x = 15,987.98

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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.