Home / 25,981.40-39,000.90-16,131.80

Finding the Fourth Proportional to 25,981.40, 39,000.90 and 16,131.80

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Solution

The fourth proportional to 25,981.40, 39,000.90 and 16,131.80 is: 24,215.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.40 : 39,000.90 = 16,131.80 : x
  2. Step 2: Convert to fraction form
    25,981.40/39,000.90 = 16,131.80/x
  3. Step 3: Cross multiply
    25,981.40x = 39,000.90 × 16,131.80
  4. Step 4: Simplify right side
    25,981.40x = 629,154,718.62
  5. Step 5: Solve for x
    x = 629,154,718.62/25,981.40
  6. Step 6: Final answer
    x = 24,215.58

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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.