Home / 55,851.96-83,751.61-20,288.20

Finding the Fourth Proportional to 55,851.96, 83,751.61 and 20,288.20

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Solution

The fourth proportional to 55,851.96, 83,751.61 and 20,288.20 is: 30,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,851.96 : 83,751.61 = 20,288.20 : x
  2. Step 2: Convert to fraction form
    55,851.96/83,751.61 = 20,288.20/x
  3. Step 3: Cross multiply
    55,851.96x = 83,751.61 × 20,288.20
  4. Step 4: Simplify right side
    55,851.96x = 1,699,169,623.38
  5. Step 5: Solve for x
    x = 1,699,169,623.38/55,851.96
  6. Step 6: Final answer
    x = 30,422.74

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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.