Home / 25,451.78-38,189.01-9,870.62

Finding the Fourth Proportional to 25,451.78, 38,189.01 and 9,870.62

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Solution

The fourth proportional to 25,451.78, 38,189.01 and 9,870.62 is: 14,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.78 : 38,189.01 = 9,870.62 : x
  2. Step 2: Convert to fraction form
    25,451.78/38,189.01 = 9,870.62/x
  3. Step 3: Cross multiply
    25,451.78x = 38,189.01 × 9,870.62
  4. Step 4: Simplify right side
    25,451.78x = 376,949,205.89
  5. Step 5: Solve for x
    x = 376,949,205.89/25,451.78
  6. Step 6: Final answer
    x = 14,810.33

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1.5x scale

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.