Home / 55,907.15-83,861.19-20,393.92

Finding the Fourth Proportional to 55,907.15, 83,861.19 and 20,393.92

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Solution

The fourth proportional to 55,907.15, 83,861.19 and 20,393.92 is: 30,591.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,907.15 : 83,861.19 = 20,393.92 : x
  2. Step 2: Convert to fraction form
    55,907.15/83,861.19 = 20,393.92/x
  3. Step 3: Cross multiply
    55,907.15x = 83,861.19 × 20,393.92
  4. Step 4: Simplify right side
    55,907.15x = 1,710,258,268.93
  5. Step 5: Solve for x
    x = 1,710,258,268.93/55,907.15
  6. Step 6: Final answer
    x = 30,591.05

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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.