Home / 27,115.14-37,421.02-19,977.69

Finding the Fourth Proportional to 27,115.14, 37,421.02 and 19,977.69

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Solution

The fourth proportional to 27,115.14, 37,421.02 and 19,977.69 is: 27,570.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.14 : 37,421.02 = 19,977.69 : x
  2. Step 2: Convert to fraction form
    27,115.14/37,421.02 = 19,977.69/x
  3. Step 3: Cross multiply
    27,115.14x = 37,421.02 × 19,977.69
  4. Step 4: Simplify right side
    27,115.14x = 747,585,349.94
  5. Step 5: Solve for x
    x = 747,585,349.94/27,115.14
  6. Step 6: Final answer
    x = 27,570.78

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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.