Home / 27,515.29-37,886.08-21,489.87

Finding the Fourth Proportional to 27,515.29, 37,886.08 and 21,489.87

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Solution

The fourth proportional to 27,515.29, 37,886.08 and 21,489.87 is: 29,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.29 : 37,886.08 = 21,489.87 : x
  2. Step 2: Convert to fraction form
    27,515.29/37,886.08 = 21,489.87/x
  3. Step 3: Cross multiply
    27,515.29x = 37,886.08 × 21,489.87
  4. Step 4: Simplify right side
    27,515.29x = 814,166,934.01
  5. Step 5: Solve for x
    x = 814,166,934.01/27,515.29
  6. Step 6: Final answer
    x = 29,589.62

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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.