Home / 28,135.69-42,182.52-17,039.68

Finding the Fourth Proportional to 28,135.69, 42,182.52 and 17,039.68

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Solution

The fourth proportional to 28,135.69, 42,182.52 and 17,039.68 is: 25,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.69 : 42,182.52 = 17,039.68 : x
  2. Step 2: Convert to fraction form
    28,135.69/42,182.52 = 17,039.68/x
  3. Step 3: Cross multiply
    28,135.69x = 42,182.52 × 17,039.68
  4. Step 4: Simplify right side
    28,135.69x = 718,776,642.39
  5. Step 5: Solve for x
    x = 718,776,642.39/28,135.69
  6. Step 6: Final answer
    x = 25,546.79

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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.