Home / 27,318.20-37,698.75-15,382.71

Finding the Fourth Proportional to 27,318.20, 37,698.75 and 15,382.71

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Solution

The fourth proportional to 27,318.20, 37,698.75 and 15,382.71 is: 21,227.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.20 : 37,698.75 = 15,382.71 : x
  2. Step 2: Convert to fraction form
    27,318.20/37,698.75 = 15,382.71/x
  3. Step 3: Cross multiply
    27,318.20x = 37,698.75 × 15,382.71
  4. Step 4: Simplify right side
    27,318.20x = 579,908,938.61
  5. Step 5: Solve for x
    x = 579,908,938.61/27,318.20
  6. Step 6: Final answer
    x = 21,227.94

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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.