Home / 28,870.75-43,307.39-9,150.76

Finding the Fourth Proportional to 28,870.75, 43,307.39 and 9,150.76

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Solution

The fourth proportional to 28,870.75, 43,307.39 and 9,150.76 is: 13,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.75 : 43,307.39 = 9,150.76 : x
  2. Step 2: Convert to fraction form
    28,870.75/43,307.39 = 9,150.76/x
  3. Step 3: Cross multiply
    28,870.75x = 43,307.39 × 9,150.76
  4. Step 4: Simplify right side
    28,870.75x = 396,295,532.12
  5. Step 5: Solve for x
    x = 396,295,532.12/28,870.75
  6. Step 6: Final answer
    x = 13,726.54

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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.