Home / 28,130.48-38,821.50-16,195.53

Finding the Fourth Proportional to 28,130.48, 38,821.50 and 16,195.53

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Solution

The fourth proportional to 28,130.48, 38,821.50 and 16,195.53 is: 22,350.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.48 : 38,821.50 = 16,195.53 : x
  2. Step 2: Convert to fraction form
    28,130.48/38,821.50 = 16,195.53/x
  3. Step 3: Cross multiply
    28,130.48x = 38,821.50 × 16,195.53
  4. Step 4: Simplify right side
    28,130.48x = 628,734,767.90
  5. Step 5: Solve for x
    x = 628,734,767.90/28,130.48
  6. Step 6: Final answer
    x = 22,350.66

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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.