Home / 25,788.81-38,685.20-10,997.81

Finding the Fourth Proportional to 25,788.81, 38,685.20 and 10,997.81

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Solution

The fourth proportional to 25,788.81, 38,685.20 and 10,997.81 is: 16,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,788.81 : 38,685.20 = 10,997.81 : x
  2. Step 2: Convert to fraction form
    25,788.81/38,685.20 = 10,997.81/x
  3. Step 3: Cross multiply
    25,788.81x = 38,685.20 × 10,997.81
  4. Step 4: Simplify right side
    25,788.81x = 425,452,231.00
  5. Step 5: Solve for x
    x = 425,452,231.00/25,788.81
  6. Step 6: Final answer
    x = 16,497.55

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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.