Home / 27,763.78-38,314.32-15,017.21

Finding the Fourth Proportional to 27,763.78, 38,314.32 and 15,017.21

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Solution

The fourth proportional to 27,763.78, 38,314.32 and 15,017.21 is: 20,723.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,763.78 : 38,314.32 = 15,017.21 : x
  2. Step 2: Convert to fraction form
    27,763.78/38,314.32 = 15,017.21/x
  3. Step 3: Cross multiply
    27,763.78x = 38,314.32 × 15,017.21
  4. Step 4: Simplify right side
    27,763.78x = 575,374,285.23
  5. Step 5: Solve for x
    x = 575,374,285.23/27,763.78
  6. Step 6: Final answer
    x = 20,723.92

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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.