Home / 27,960.16-38,585.28-15,384.96

Finding the Fourth Proportional to 27,960.16, 38,585.28 and 15,384.96

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Solution

The fourth proportional to 27,960.16, 38,585.28 and 15,384.96 is: 21,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.16 : 38,585.28 = 15,384.96 : x
  2. Step 2: Convert to fraction form
    27,960.16/38,585.28 = 15,384.96/x
  3. Step 3: Cross multiply
    27,960.16x = 38,585.28 × 15,384.96
  4. Step 4: Simplify right side
    27,960.16x = 593,632,989.39
  5. Step 5: Solve for x
    x = 593,632,989.39/27,960.16
  6. Step 6: Final answer
    x = 21,231.39

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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.