Home / 27,057.86-37,339.61-15,120.89

Finding the Fourth Proportional to 27,057.86, 37,339.61 and 15,120.89

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Solution

The fourth proportional to 27,057.86, 37,339.61 and 15,120.89 is: 20,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.86 : 37,339.61 = 15,120.89 : x
  2. Step 2: Convert to fraction form
    27,057.86/37,339.61 = 15,120.89/x
  3. Step 3: Cross multiply
    27,057.86x = 37,339.61 × 15,120.89
  4. Step 4: Simplify right side
    27,057.86x = 564,607,873.15
  5. Step 5: Solve for x
    x = 564,607,873.15/27,057.86
  6. Step 6: Final answer
    x = 20,866.69

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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.