Home / 31,574.78-43,588.96-19,641.99

Finding the Fourth Proportional to 31,574.78, 43,588.96 and 19,641.99

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Solution

The fourth proportional to 31,574.78, 43,588.96 and 19,641.99 is: 27,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,574.78 : 43,588.96 = 19,641.99 : x
  2. Step 2: Convert to fraction form
    31,574.78/43,588.96 = 19,641.99/x
  3. Step 3: Cross multiply
    31,574.78x = 43,588.96 × 19,641.99
  4. Step 4: Simplify right side
    31,574.78x = 856,173,867.33
  5. Step 5: Solve for x
    x = 856,173,867.33/31,574.78
  6. Step 6: Final answer
    x = 27,115.76

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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.