Home / 20,937.24-28,894.62-13,851.24

Finding the Fourth Proportional to 20,937.24, 28,894.62 and 13,851.24

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Solution

The fourth proportional to 20,937.24, 28,894.62 and 13,851.24 is: 19,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.24 : 28,894.62 = 13,851.24 : x
  2. Step 2: Convert to fraction form
    20,937.24/28,894.62 = 13,851.24/x
  3. Step 3: Cross multiply
    20,937.24x = 28,894.62 × 13,851.24
  4. Step 4: Simplify right side
    20,937.24x = 400,226,316.33
  5. Step 5: Solve for x
    x = 400,226,316.33/20,937.24
  6. Step 6: Final answer
    x = 19,115.52

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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.