Home / 27,187.54-37,479.09-19,215.70

Finding the Fourth Proportional to 27,187.54, 37,479.09 and 19,215.70

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Solution

The fourth proportional to 27,187.54, 37,479.09 and 19,215.70 is: 26,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,187.54 : 37,479.09 = 19,215.70 : x
  2. Step 2: Convert to fraction form
    27,187.54/37,479.09 = 19,215.70/x
  3. Step 3: Cross multiply
    27,187.54x = 37,479.09 × 19,215.70
  4. Step 4: Simplify right side
    27,187.54x = 720,186,949.71
  5. Step 5: Solve for x
    x = 720,186,949.71/27,187.54
  6. Step 6: Final answer
    x = 26,489.60

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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.