Home / 27,521.21-37,979.42-15,586.87

Finding the Fourth Proportional to 27,521.21, 37,979.42 and 15,586.87

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Solution

The fourth proportional to 27,521.21, 37,979.42 and 15,586.87 is: 21,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,521.21 : 37,979.42 = 15,586.87 : x
  2. Step 2: Convert to fraction form
    27,521.21/37,979.42 = 15,586.87/x
  3. Step 3: Cross multiply
    27,521.21x = 37,979.42 × 15,586.87
  4. Step 4: Simplify right side
    27,521.21x = 591,980,282.22
  5. Step 5: Solve for x
    x = 591,980,282.22/27,521.21
  6. Step 6: Final answer
    x = 21,509.97

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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.