Home / 28,444.68-42,648.72-11,816.20

Finding the Fourth Proportional to 28,444.68, 42,648.72 and 11,816.20

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Solution

The fourth proportional to 28,444.68, 42,648.72 and 11,816.20 is: 17,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.68 : 42,648.72 = 11,816.20 : x
  2. Step 2: Convert to fraction form
    28,444.68/42,648.72 = 11,816.20/x
  3. Step 3: Cross multiply
    28,444.68x = 42,648.72 × 11,816.20
  4. Step 4: Simplify right side
    28,444.68x = 503,945,805.26
  5. Step 5: Solve for x
    x = 503,945,805.26/28,444.68
  6. Step 6: Final answer
    x = 17,716.70

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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.