Home / 19,970.32-29,955.47-6,822.80

Finding the Fourth Proportional to 19,970.32, 29,955.47 and 6,822.80

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Solution

The fourth proportional to 19,970.32, 29,955.47 and 6,822.80 is: 10,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.32 : 29,955.47 = 6,822.80 : x
  2. Step 2: Convert to fraction form
    19,970.32/29,955.47 = 6,822.80/x
  3. Step 3: Cross multiply
    19,970.32x = 29,955.47 × 6,822.80
  4. Step 4: Simplify right side
    19,970.32x = 204,380,272.66
  5. Step 5: Solve for x
    x = 204,380,272.66/19,970.32
  6. Step 6: Final answer
    x = 10,234.20

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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.