Home / 53,822.87-80,739.80-20,570.92

Finding the Fourth Proportional to 53,822.87, 80,739.80 and 20,570.92

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Solution

The fourth proportional to 53,822.87, 80,739.80 and 20,570.92 is: 30,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,822.87 : 80,739.80 = 20,570.92 : x
  2. Step 2: Convert to fraction form
    53,822.87/80,739.80 = 20,570.92/x
  3. Step 3: Cross multiply
    53,822.87x = 80,739.80 × 20,570.92
  4. Step 4: Simplify right side
    53,822.87x = 1,660,891,816.19
  5. Step 5: Solve for x
    x = 1,660,891,816.19/53,822.87
  6. Step 6: Final answer
    x = 30,858.48

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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.