Home / 27,435.87-37,864.31-19,785.47

Finding the Fourth Proportional to 27,435.87, 37,864.31 and 19,785.47

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Solution

The fourth proportional to 27,435.87, 37,864.31 and 19,785.47 is: 27,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,435.87 : 37,864.31 = 19,785.47 : x
  2. Step 2: Convert to fraction form
    27,435.87/37,864.31 = 19,785.47/x
  3. Step 3: Cross multiply
    27,435.87x = 37,864.31 × 19,785.47
  4. Step 4: Simplify right side
    27,435.87x = 749,162,881.33
  5. Step 5: Solve for x
    x = 749,162,881.33/27,435.87
  6. Step 6: Final answer
    x = 27,305.96

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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.