Home / 31,561.71-43,570.94-19,628.89

Finding the Fourth Proportional to 31,561.71, 43,570.94 and 19,628.89

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Solution

The fourth proportional to 31,561.71, 43,570.94 and 19,628.89 is: 27,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.71 : 43,570.94 = 19,628.89 : x
  2. Step 2: Convert to fraction form
    31,561.71/43,570.94 = 19,628.89/x
  3. Step 3: Cross multiply
    31,561.71x = 43,570.94 × 19,628.89
  4. Step 4: Simplify right side
    31,561.71x = 855,249,188.46
  5. Step 5: Solve for x
    x = 855,249,188.46/31,561.71
  6. Step 6: Final answer
    x = 27,097.68

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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.