Home / 20,821.05-31,233.20-6,030.18

Finding the Fourth Proportional to 20,821.05, 31,233.20 and 6,030.18

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Solution

The fourth proportional to 20,821.05, 31,233.20 and 6,030.18 is: 9,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821.05 : 31,233.20 = 6,030.18 : x
  2. Step 2: Convert to fraction form
    20,821.05/31,233.20 = 6,030.18/x
  3. Step 3: Cross multiply
    20,821.05x = 31,233.20 × 6,030.18
  4. Step 4: Simplify right side
    20,821.05x = 188,341,787.83
  5. Step 5: Solve for x
    x = 188,341,787.83/20,821.05
  6. Step 6: Final answer
    x = 9,045.74

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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.