Home / 20,752.06-28,637.80-11,320.62

Finding the Fourth Proportional to 20,752.06, 28,637.80 and 11,320.62

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Solution

The fourth proportional to 20,752.06, 28,637.80 and 11,320.62 is: 15,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.06 : 28,637.80 = 11,320.62 : x
  2. Step 2: Convert to fraction form
    20,752.06/28,637.80 = 11,320.62/x
  3. Step 3: Cross multiply
    20,752.06x = 28,637.80 × 11,320.62
  4. Step 4: Simplify right side
    20,752.06x = 324,197,665.59
  5. Step 5: Solve for x
    x = 324,197,665.59/20,752.06
  6. Step 6: Final answer
    x = 15,622.43

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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.