Home / 20,030.97-30,038.09-6,884.40

Finding the Fourth Proportional to 20,030.97, 30,038.09 and 6,884.40

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Solution

The fourth proportional to 20,030.97, 30,038.09 and 6,884.40 is: 10,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.97 : 30,038.09 = 6,884.40 : x
  2. Step 2: Convert to fraction form
    20,030.97/30,038.09 = 6,884.40/x
  3. Step 3: Cross multiply
    20,030.97x = 30,038.09 × 6,884.40
  4. Step 4: Simplify right side
    20,030.97x = 206,794,192.37
  5. Step 5: Solve for x
    x = 206,794,192.37/20,030.97
  6. Step 6: Final answer
    x = 10,323.72

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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.