Home / 25,982.86-38,971.05-10,400.62

Finding the Fourth Proportional to 25,982.86, 38,971.05 and 10,400.62

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Solution

The fourth proportional to 25,982.86, 38,971.05 and 10,400.62 is: 15,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.86 : 38,971.05 = 10,400.62 : x
  2. Step 2: Convert to fraction form
    25,982.86/38,971.05 = 10,400.62/x
  3. Step 3: Cross multiply
    25,982.86x = 38,971.05 × 10,400.62
  4. Step 4: Simplify right side
    25,982.86x = 405,323,082.05
  5. Step 5: Solve for x
    x = 405,323,082.05/25,982.86
  6. Step 6: Final answer
    x = 15,599.63

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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.