Home / 28,188.82-42,288.03-9,716.50

Finding the Fourth Proportional to 28,188.82, 42,288.03 and 9,716.50

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Solution

The fourth proportional to 28,188.82, 42,288.03 and 9,716.50 is: 14,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.82 : 42,288.03 = 9,716.50 : x
  2. Step 2: Convert to fraction form
    28,188.82/42,288.03 = 9,716.50/x
  3. Step 3: Cross multiply
    28,188.82x = 42,288.03 × 9,716.50
  4. Step 4: Simplify right side
    28,188.82x = 410,891,643.50
  5. Step 5: Solve for x
    x = 410,891,643.50/28,188.82
  6. Step 6: Final answer
    x = 14,576.40

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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.