Home / 20,030.48-30,033.08-6,881.68

Finding the Fourth Proportional to 20,030.48, 30,033.08 and 6,881.68

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Solution

The fourth proportional to 20,030.48, 30,033.08 and 6,881.68 is: 10,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.48 : 30,033.08 = 6,881.68 : x
  2. Step 2: Convert to fraction form
    20,030.48/30,033.08 = 6,881.68/x
  3. Step 3: Cross multiply
    20,030.48x = 30,033.08 × 6,881.68
  4. Step 4: Simplify right side
    20,030.48x = 206,678,045.97
  5. Step 5: Solve for x
    x = 206,678,045.97/20,030.48
  6. Step 6: Final answer
    x = 10,318.18

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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.