Home / 20,810.08-31,210.47-6,015.70

Finding the Fourth Proportional to 20,810.08, 31,210.47 and 6,015.70

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Solution

The fourth proportional to 20,810.08, 31,210.47 and 6,015.70 is: 9,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.08 : 31,210.47 = 6,015.70 : x
  2. Step 2: Convert to fraction form
    20,810.08/31,210.47 = 6,015.70/x
  3. Step 3: Cross multiply
    20,810.08x = 31,210.47 × 6,015.70
  4. Step 4: Simplify right side
    20,810.08x = 187,752,824.38
  5. Step 5: Solve for x
    x = 187,752,824.38/20,810.08
  6. Step 6: Final answer
    x = 9,022.21

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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.