Home / 31,561.68-43,570.91-19,628.87

Finding the Fourth Proportional to 31,561.68, 43,570.91 and 19,628.87

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Solution

The fourth proportional to 31,561.68, 43,570.91 and 19,628.87 is: 27,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.68 : 43,570.91 = 19,628.87 : x
  2. Step 2: Convert to fraction form
    31,561.68/43,570.91 = 19,628.87/x
  3. Step 3: Cross multiply
    31,561.68x = 43,570.91 × 19,628.87
  4. Step 4: Simplify right side
    31,561.68x = 855,247,412.17
  5. Step 5: Solve for x
    x = 855,247,412.17/31,561.68
  6. Step 6: Final answer
    x = 27,097.65

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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.