Home / 27,960.58-38,588.16-15,386.14

Finding the Fourth Proportional to 27,960.58, 38,588.16 and 15,386.14

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Solution

The fourth proportional to 27,960.58, 38,588.16 and 15,386.14 is: 21,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.58 : 38,588.16 = 15,386.14 : x
  2. Step 2: Convert to fraction form
    27,960.58/38,588.16 = 15,386.14/x
  3. Step 3: Cross multiply
    27,960.58x = 38,588.16 × 15,386.14
  4. Step 4: Simplify right side
    27,960.58x = 593,722,832.10
  5. Step 5: Solve for x
    x = 593,722,832.10/27,960.58
  6. Step 6: Final answer
    x = 21,234.28

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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.