Home / 27,121.34-37,431.88-16,218.74

Finding the Fourth Proportional to 27,121.34, 37,431.88 and 16,218.74

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Solution

The fourth proportional to 27,121.34, 37,431.88 and 16,218.74 is: 22,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.34 : 37,431.88 = 16,218.74 : x
  2. Step 2: Convert to fraction form
    27,121.34/37,431.88 = 16,218.74/x
  3. Step 3: Cross multiply
    27,121.34x = 37,431.88 × 16,218.74
  4. Step 4: Simplify right side
    27,121.34x = 607,097,929.43
  5. Step 5: Solve for x
    x = 607,097,929.43/27,121.34
  6. Step 6: Final answer
    x = 22,384.51

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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.