Home / 20,018.98-30,030.52-6,869.64

Finding the Fourth Proportional to 20,018.98, 30,030.52 and 6,869.64

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Solution

The fourth proportional to 20,018.98, 30,030.52 and 6,869.64 is: 10,305.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.98 : 30,030.52 = 6,869.64 : x
  2. Step 2: Convert to fraction form
    20,018.98/30,030.52 = 6,869.64/x
  3. Step 3: Cross multiply
    20,018.98x = 30,030.52 × 6,869.64
  4. Step 4: Simplify right side
    20,018.98x = 206,298,844.24
  5. Step 5: Solve for x
    x = 206,298,844.24/20,018.98
  6. Step 6: Final answer
    x = 10,305.16

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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.