Home / 35,920.99-49,571.04-20,816.56

Finding the Fourth Proportional to 35,920.99, 49,571.04 and 20,816.56

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Solution

The fourth proportional to 35,920.99, 49,571.04 and 20,816.56 is: 28,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,920.99 : 49,571.04 = 20,816.56 : x
  2. Step 2: Convert to fraction form
    35,920.99/49,571.04 = 20,816.56/x
  3. Step 3: Cross multiply
    35,920.99x = 49,571.04 × 20,816.56
  4. Step 4: Simplify right side
    35,920.99x = 1,031,898,551.36
  5. Step 5: Solve for x
    x = 1,031,898,551.36/35,920.99
  6. Step 6: Final answer
    x = 28,726.90

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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.