Home / 25,982.81-35,847.78-15,900.74

Finding the Fourth Proportional to 25,982.81, 35,847.78 and 15,900.74

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Solution

The fourth proportional to 25,982.81, 35,847.78 and 15,900.74 is: 21,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.81 : 35,847.78 = 15,900.74 : x
  2. Step 2: Convert to fraction form
    25,982.81/35,847.78 = 15,900.74/x
  3. Step 3: Cross multiply
    25,982.81x = 35,847.78 × 15,900.74
  4. Step 4: Simplify right side
    25,982.81x = 570,006,229.36
  5. Step 5: Solve for x
    x = 570,006,229.36/25,982.81
  6. Step 6: Final answer
    x = 21,937.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.