Home / 27,964.89-38,592.33-15,389.64

Finding the Fourth Proportional to 27,964.89, 38,592.33 and 15,389.64

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Solution

The fourth proportional to 27,964.89, 38,592.33 and 15,389.64 is: 21,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.89 : 38,592.33 = 15,389.64 : x
  2. Step 2: Convert to fraction form
    27,964.89/38,592.33 = 15,389.64/x
  3. Step 3: Cross multiply
    27,964.89x = 38,592.33 × 15,389.64
  4. Step 4: Simplify right side
    27,964.89x = 593,922,065.46
  5. Step 5: Solve for x
    x = 593,922,065.46/27,964.89
  6. Step 6: Final answer
    x = 21,238.13

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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.