Home / 28,135.53-38,808.72-18,047.99

Finding the Fourth Proportional to 28,135.53, 38,808.72 and 18,047.99

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Solution

The fourth proportional to 28,135.53, 38,808.72 and 18,047.99 is: 24,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.53 : 38,808.72 = 18,047.99 : x
  2. Step 2: Convert to fraction form
    28,135.53/38,808.72 = 18,047.99/x
  3. Step 3: Cross multiply
    28,135.53x = 38,808.72 × 18,047.99
  4. Step 4: Simplify right side
    28,135.53x = 700,419,196.43
  5. Step 5: Solve for x
    x = 700,419,196.43/28,135.53
  6. Step 6: Final answer
    x = 24,894.47

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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.