Home / 53,338.32-80,053.56-20,529.36

Finding the Fourth Proportional to 53,338.32, 80,053.56 and 20,529.36

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Solution

The fourth proportional to 53,338.32, 80,053.56 and 20,529.36 is: 30,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,338.32 : 80,053.56 = 20,529.36 : x
  2. Step 2: Convert to fraction form
    53,338.32/80,053.56 = 20,529.36/x
  3. Step 3: Cross multiply
    53,338.32x = 80,053.56 × 20,529.36
  4. Step 4: Simplify right side
    53,338.32x = 1,643,448,352.52
  5. Step 5: Solve for x
    x = 1,643,448,352.52/53,338.32
  6. Step 6: Final answer
    x = 30,811.78

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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.