Home / 20,015.15-30,026.83-6,686.58

Finding the Fourth Proportional to 20,015.15, 30,026.83 and 6,686.58

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Solution

The fourth proportional to 20,015.15, 30,026.83 and 6,686.58 is: 10,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.15 : 30,026.83 = 6,686.58 : x
  2. Step 2: Convert to fraction form
    20,015.15/30,026.83 = 6,686.58/x
  3. Step 3: Cross multiply
    20,015.15x = 30,026.83 × 6,686.58
  4. Step 4: Simplify right side
    20,015.15x = 200,776,827.22
  5. Step 5: Solve for x
    x = 200,776,827.22/20,015.15
  6. Step 6: Final answer
    x = 10,031.24

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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.