Home / 20,820.70-31,235.10-6,030.10

Finding the Fourth Proportional to 20,820.70, 31,235.10 and 6,030.10

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Solution

The fourth proportional to 20,820.70, 31,235.10 and 6,030.10 is: 9,046.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820.70 : 31,235.10 = 6,030.10 : x
  2. Step 2: Convert to fraction form
    20,820.70/31,235.10 = 6,030.10/x
  3. Step 3: Cross multiply
    20,820.70x = 31,235.10 × 6,030.10
  4. Step 4: Simplify right side
    20,820.70x = 188,350,776.51
  5. Step 5: Solve for x
    x = 188,350,776.51/20,820.70
  6. Step 6: Final answer
    x = 9,046.32

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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.