Home / 30,352.07-41,864.91-20,141.21

Finding the Fourth Proportional to 30,352.07, 41,864.91 and 20,141.21

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Solution

The fourth proportional to 30,352.07, 41,864.91 and 20,141.21 is: 27,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.07 : 41,864.91 = 20,141.21 : x
  2. Step 2: Convert to fraction form
    30,352.07/41,864.91 = 20,141.21/x
  3. Step 3: Cross multiply
    30,352.07x = 41,864.91 × 20,141.21
  4. Step 4: Simplify right side
    30,352.07x = 843,209,943.94
  5. Step 5: Solve for x
    x = 843,209,943.94/30,352.07
  6. Step 6: Final answer
    x = 27,780.97

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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.