Home / 15,519.80-23,277.90-4,428.20

Finding the Fourth Proportional to 15,519.80, 23,277.90 and 4,428.20

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Solution

The fourth proportional to 15,519.80, 23,277.90 and 4,428.20 is: 6,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.80 : 23,277.90 = 4,428.20 : x
  2. Step 2: Convert to fraction form
    15,519.80/23,277.90 = 4,428.20/x
  3. Step 3: Cross multiply
    15,519.80x = 23,277.90 × 4,428.20
  4. Step 4: Simplify right side
    15,519.80x = 103,079,196.78
  5. Step 5: Solve for x
    x = 103,079,196.78/15,519.80
  6. Step 6: Final answer
    x = 6,641.79

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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.