Home / 28,042.57-42,055.26-9,317.71

Finding the Fourth Proportional to 28,042.57, 42,055.26 and 9,317.71

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Solution

The fourth proportional to 28,042.57, 42,055.26 and 9,317.71 is: 13,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.57 : 42,055.26 = 9,317.71 : x
  2. Step 2: Convert to fraction form
    28,042.57/42,055.26 = 9,317.71/x
  3. Step 3: Cross multiply
    28,042.57x = 42,055.26 × 9,317.71
  4. Step 4: Simplify right side
    28,042.57x = 391,858,716.65
  5. Step 5: Solve for x
    x = 391,858,716.65/28,042.57
  6. Step 6: Final answer
    x = 13,973.71

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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.