Home / 25,781.96-38,607.30-16,990.22

Finding the Fourth Proportional to 25,781.96, 38,607.30 and 16,990.22

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Solution

The fourth proportional to 25,781.96, 38,607.30 and 16,990.22 is: 25,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.96 : 38,607.30 = 16,990.22 : x
  2. Step 2: Convert to fraction form
    25,781.96/38,607.30 = 16,990.22/x
  3. Step 3: Cross multiply
    25,781.96x = 38,607.30 × 16,990.22
  4. Step 4: Simplify right side
    25,781.96x = 655,946,617.12
  5. Step 5: Solve for x
    x = 655,946,617.12/25,781.96
  6. Step 6: Final answer
    x = 25,442.07

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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.