Home / 28,208.28-42,318.63-10,678.17

Finding the Fourth Proportional to 28,208.28, 42,318.63 and 10,678.17

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Solution

The fourth proportional to 28,208.28, 42,318.63 and 10,678.17 is: 16,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.28 : 42,318.63 = 10,678.17 : x
  2. Step 2: Convert to fraction form
    28,208.28/42,318.63 = 10,678.17/x
  3. Step 3: Cross multiply
    28,208.28x = 42,318.63 × 10,678.17
  4. Step 4: Simplify right side
    28,208.28x = 451,885,525.31
  5. Step 5: Solve for x
    x = 451,885,525.31/28,208.28
  6. Step 6: Final answer
    x = 16,019.61

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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.