Home / 20,055.28-30,050.52-12,240.40

Finding the Fourth Proportional to 20,055.28, 30,050.52 and 12,240.40

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Solution

The fourth proportional to 20,055.28, 30,050.52 and 12,240.40 is: 18,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.28 : 30,050.52 = 12,240.40 : x
  2. Step 2: Convert to fraction form
    20,055.28/30,050.52 = 12,240.40/x
  3. Step 3: Cross multiply
    20,055.28x = 30,050.52 × 12,240.40
  4. Step 4: Simplify right side
    20,055.28x = 367,830,385.01
  5. Step 5: Solve for x
    x = 367,830,385.01/20,055.28
  6. Step 6: Final answer
    x = 18,340.83

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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.