Home / 28,569.12-42,850.40-7,794.24

Finding the Fourth Proportional to 28,569.12, 42,850.40 and 7,794.24

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Solution

The fourth proportional to 28,569.12, 42,850.40 and 7,794.24 is: 11,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.12 : 42,850.40 = 7,794.24 : x
  2. Step 2: Convert to fraction form
    28,569.12/42,850.40 = 7,794.24/x
  3. Step 3: Cross multiply
    28,569.12x = 42,850.40 × 7,794.24
  4. Step 4: Simplify right side
    28,569.12x = 333,986,301.70
  5. Step 5: Solve for x
    x = 333,986,301.70/28,569.12
  6. Step 6: Final answer
    x = 11,690.47

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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.