Home / 55,505.24-83,218.92-20,440.40

Finding the Fourth Proportional to 55,505.24, 83,218.92 and 20,440.40

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Solution

The fourth proportional to 55,505.24, 83,218.92 and 20,440.40 is: 30,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,505.24 : 83,218.92 = 20,440.40 : x
  2. Step 2: Convert to fraction form
    55,505.24/83,218.92 = 20,440.40/x
  3. Step 3: Cross multiply
    55,505.24x = 83,218.92 × 20,440.40
  4. Step 4: Simplify right side
    55,505.24x = 1,701,028,012.37
  5. Step 5: Solve for x
    x = 1,701,028,012.37/55,505.24
  6. Step 6: Final answer
    x = 30,646.26

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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.