Home / 20,752.05-28,639.53-11,802.36

Finding the Fourth Proportional to 20,752.05, 28,639.53 and 11,802.36

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Solution

The fourth proportional to 20,752.05, 28,639.53 and 11,802.36 is: 16,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.05 : 28,639.53 = 11,802.36 : x
  2. Step 2: Convert to fraction form
    20,752.05/28,639.53 = 11,802.36/x
  3. Step 3: Cross multiply
    20,752.05x = 28,639.53 × 11,802.36
  4. Step 4: Simplify right side
    20,752.05x = 338,014,043.29
  5. Step 5: Solve for x
    x = 338,014,043.29/20,752.05
  6. Step 6: Final answer
    x = 16,288.22

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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.