Home / 20,803.08-31,210.08-6,013.20

Finding the Fourth Proportional to 20,803.08, 31,210.08 and 6,013.20

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Solution

The fourth proportional to 20,803.08, 31,210.08 and 6,013.20 is: 9,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.08 : 31,210.08 = 6,013.20 : x
  2. Step 2: Convert to fraction form
    20,803.08/31,210.08 = 6,013.20/x
  3. Step 3: Cross multiply
    20,803.08x = 31,210.08 × 6,013.20
  4. Step 4: Simplify right side
    20,803.08x = 187,672,453.06
  5. Step 5: Solve for x
    x = 187,672,453.06/20,803.08
  6. Step 6: Final answer
    x = 9,021.38

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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.