Home / 28,715.02-43,067.66-7,938.58

Finding the Fourth Proportional to 28,715.02, 43,067.66 and 7,938.58

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Solution

The fourth proportional to 28,715.02, 43,067.66 and 7,938.58 is: 11,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.02 : 43,067.66 = 7,938.58 : x
  2. Step 2: Convert to fraction form
    28,715.02/43,067.66 = 7,938.58/x
  3. Step 3: Cross multiply
    28,715.02x = 43,067.66 × 7,938.58
  4. Step 4: Simplify right side
    28,715.02x = 341,896,064.32
  5. Step 5: Solve for x
    x = 341,896,064.32/28,715.02
  6. Step 6: Final answer
    x = 11,906.52

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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.