Home / 27,318.89-37,700.78-15,382.66

Finding the Fourth Proportional to 27,318.89, 37,700.78 and 15,382.66

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Solution

The fourth proportional to 27,318.89, 37,700.78 and 15,382.66 is: 21,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.89 : 37,700.78 = 15,382.66 : x
  2. Step 2: Convert to fraction form
    27,318.89/37,700.78 = 15,382.66/x
  3. Step 3: Cross multiply
    27,318.89x = 37,700.78 × 15,382.66
  4. Step 4: Simplify right side
    27,318.89x = 579,938,280.47
  5. Step 5: Solve for x
    x = 579,938,280.47/27,318.89
  6. Step 6: Final answer
    x = 21,228.47

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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.