Home / 40,909.92-61,320.69-19,805.37

Finding the Fourth Proportional to 40,909.92, 61,320.69 and 19,805.37

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Solution

The fourth proportional to 40,909.92, 61,320.69 and 19,805.37 is: 29,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,909.92 : 61,320.69 = 19,805.37 : x
  2. Step 2: Convert to fraction form
    40,909.92/61,320.69 = 19,805.37/x
  3. Step 3: Cross multiply
    40,909.92x = 61,320.69 × 19,805.37
  4. Step 4: Simplify right side
    40,909.92x = 1,214,478,954.11
  5. Step 5: Solve for x
    x = 1,214,478,954.11/40,909.92
  6. Step 6: Final answer
    x = 29,686.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.