Home / 28,277.29-42,415.90-7,217.33

Finding the Fourth Proportional to 28,277.29, 42,415.90 and 7,217.33

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Solution

The fourth proportional to 28,277.29, 42,415.90 and 7,217.33 is: 10,825.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.29 : 42,415.90 = 7,217.33 : x
  2. Step 2: Convert to fraction form
    28,277.29/42,415.90 = 7,217.33/x
  3. Step 3: Cross multiply
    28,277.29x = 42,415.90 × 7,217.33
  4. Step 4: Simplify right side
    28,277.29x = 306,129,667.21
  5. Step 5: Solve for x
    x = 306,129,667.21/28,277.29
  6. Step 6: Final answer
    x = 10,825.99

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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.