Home / 25,830.18-38,749.55-9,186.71

Finding the Fourth Proportional to 25,830.18, 38,749.55 and 9,186.71

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Solution

The fourth proportional to 25,830.18, 38,749.55 and 9,186.71 is: 13,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.18 : 38,749.55 = 9,186.71 : x
  2. Step 2: Convert to fraction form
    25,830.18/38,749.55 = 9,186.71/x
  3. Step 3: Cross multiply
    25,830.18x = 38,749.55 × 9,186.71
  4. Step 4: Simplify right side
    25,830.18x = 355,980,638.80
  5. Step 5: Solve for x
    x = 355,980,638.80/25,830.18
  6. Step 6: Final answer
    x = 13,781.58

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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.