Home / 27,881.24-38,466.72-17,815.56

Finding the Fourth Proportional to 27,881.24, 38,466.72 and 17,815.56

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Solution

The fourth proportional to 27,881.24, 38,466.72 and 17,815.56 is: 24,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.24 : 38,466.72 = 17,815.56 : x
  2. Step 2: Convert to fraction form
    27,881.24/38,466.72 = 17,815.56/x
  3. Step 3: Cross multiply
    27,881.24x = 38,466.72 × 17,815.56
  4. Step 4: Simplify right side
    27,881.24x = 685,306,158.16
  5. Step 5: Solve for x
    x = 685,306,158.16/27,881.24
  6. Step 6: Final answer
    x = 24,579.47

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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.