Home / 27,653.20-38,161.32-15,077.95

Finding the Fourth Proportional to 27,653.20, 38,161.32 and 15,077.95

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Solution

The fourth proportional to 27,653.20, 38,161.32 and 15,077.95 is: 20,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.20 : 38,161.32 = 15,077.95 : x
  2. Step 2: Convert to fraction form
    27,653.20/38,161.32 = 15,077.95/x
  3. Step 3: Cross multiply
    27,653.20x = 38,161.32 × 15,077.95
  4. Step 4: Simplify right side
    27,653.20x = 575,394,474.89
  5. Step 5: Solve for x
    x = 575,394,474.89/27,653.20
  6. Step 6: Final answer
    x = 20,807.52

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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.