Home / 28,360.83-39,127.45-28,317.09

Finding the Fourth Proportional to 28,360.83, 39,127.45 and 28,317.09

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Solution

The fourth proportional to 28,360.83, 39,127.45 and 28,317.09 is: 39,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.83 : 39,127.45 = 28,317.09 : x
  2. Step 2: Convert to fraction form
    28,360.83/39,127.45 = 28,317.09/x
  3. Step 3: Cross multiply
    28,360.83x = 39,127.45 × 28,317.09
  4. Step 4: Simplify right side
    28,360.83x = 1,107,975,523.12
  5. Step 5: Solve for x
    x = 1,107,975,523.12/28,360.83
  6. Step 6: Final answer
    x = 39,067.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.