Home / 28,039.27-42,068.01-18,717.18

Finding the Fourth Proportional to 28,039.27, 42,068.01 and 18,717.18

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Solution

The fourth proportional to 28,039.27, 42,068.01 and 18,717.18 is: 28,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.27 : 42,068.01 = 18,717.18 : x
  2. Step 2: Convert to fraction form
    28,039.27/42,068.01 = 18,717.18/x
  3. Step 3: Cross multiply
    28,039.27x = 42,068.01 × 18,717.18
  4. Step 4: Simplify right side
    28,039.27x = 787,394,410.24
  5. Step 5: Solve for x
    x = 787,394,410.24/28,039.27
  6. Step 6: Final answer
    x = 28,081.85

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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.