Home / 27,359.10-37,755.81-15,421.38

Finding the Fourth Proportional to 27,359.10, 37,755.81 and 15,421.38

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Solution

The fourth proportional to 27,359.10, 37,755.81 and 15,421.38 is: 21,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,359.10 : 37,755.81 = 15,421.38 : x
  2. Step 2: Convert to fraction form
    27,359.10/37,755.81 = 15,421.38/x
  3. Step 3: Cross multiply
    27,359.10x = 37,755.81 × 15,421.38
  4. Step 4: Simplify right side
    27,359.10x = 582,246,693.22
  5. Step 5: Solve for x
    x = 582,246,693.22/27,359.10
  6. Step 6: Final answer
    x = 21,281.65

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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.