Home / 28,042.39-42,022.03-11,382.15

Finding the Fourth Proportional to 28,042.39, 42,022.03 and 11,382.15

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Solution

The fourth proportional to 28,042.39, 42,022.03 and 11,382.15 is: 17,056.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.39 : 42,022.03 = 11,382.15 : x
  2. Step 2: Convert to fraction form
    28,042.39/42,022.03 = 11,382.15/x
  3. Step 3: Cross multiply
    28,042.39x = 42,022.03 × 11,382.15
  4. Step 4: Simplify right side
    28,042.39x = 478,301,048.76
  5. Step 5: Solve for x
    x = 478,301,048.76/28,042.39
  6. Step 6: Final answer
    x = 17,056.36

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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.