Home / 20,019.64-30,020.90-6,873.34

Finding the Fourth Proportional to 20,019.64, 30,020.90 and 6,873.34

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Solution

The fourth proportional to 20,019.64, 30,020.90 and 6,873.34 is: 10,307.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.64 : 30,020.90 = 6,873.34 : x
  2. Step 2: Convert to fraction form
    20,019.64/30,020.90 = 6,873.34/x
  3. Step 3: Cross multiply
    20,019.64x = 30,020.90 × 6,873.34
  4. Step 4: Simplify right side
    20,019.64x = 206,343,852.81
  5. Step 5: Solve for x
    x = 206,343,852.81/20,019.64
  6. Step 6: Final answer
    x = 10,307.07

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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.