Home / 20,809.86-31,215.02-6,018.92

Finding the Fourth Proportional to 20,809.86, 31,215.02 and 6,018.92

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Solution

The fourth proportional to 20,809.86, 31,215.02 and 6,018.92 is: 9,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809.86 : 31,215.02 = 6,018.92 : x
  2. Step 2: Convert to fraction form
    20,809.86/31,215.02 = 6,018.92/x
  3. Step 3: Cross multiply
    20,809.86x = 31,215.02 × 6,018.92
  4. Step 4: Simplify right side
    20,809.86x = 187,880,522.01
  5. Step 5: Solve for x
    x = 187,880,522.01/20,809.86
  6. Step 6: Final answer
    x = 9,028.44

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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.