Home / 27,964.76-38,590.42-15,389.48

Finding the Fourth Proportional to 27,964.76, 38,590.42 and 15,389.48

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Solution

The fourth proportional to 27,964.76, 38,590.42 and 15,389.48 is: 21,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.76 : 38,590.42 = 15,389.48 : x
  2. Step 2: Convert to fraction form
    27,964.76/38,590.42 = 15,389.48/x
  3. Step 3: Cross multiply
    27,964.76x = 38,590.42 × 15,389.48
  4. Step 4: Simplify right side
    27,964.76x = 593,886,496.78
  5. Step 5: Solve for x
    x = 593,886,496.78/27,964.76
  6. Step 6: Final answer
    x = 21,236.96

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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.