Home / 25,465.80-38,189.55-8,821.35

Finding the Fourth Proportional to 25,465.80, 38,189.55 and 8,821.35

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Solution

The fourth proportional to 25,465.80, 38,189.55 and 8,821.35 is: 13,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,465.80 : 38,189.55 = 8,821.35 : x
  2. Step 2: Convert to fraction form
    25,465.80/38,189.55 = 8,821.35/x
  3. Step 3: Cross multiply
    25,465.80x = 38,189.55 × 8,821.35
  4. Step 4: Simplify right side
    25,465.80x = 336,883,386.89
  5. Step 5: Solve for x
    x = 336,883,386.89/25,465.80
  6. Step 6: Final answer
    x = 13,228.86

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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.