Home / 28,027.47-42,036.78-7,759.44

Finding the Fourth Proportional to 28,027.47, 42,036.78 and 7,759.44

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Solution

The fourth proportional to 28,027.47, 42,036.78 and 7,759.44 is: 11,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.47 : 42,036.78 = 7,759.44 : x
  2. Step 2: Convert to fraction form
    28,027.47/42,036.78 = 7,759.44/x
  3. Step 3: Cross multiply
    28,027.47x = 42,036.78 × 7,759.44
  4. Step 4: Simplify right side
    28,027.47x = 326,181,872.20
  5. Step 5: Solve for x
    x = 326,181,872.20/28,027.47
  6. Step 6: Final answer
    x = 11,637.93

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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.