Home / 19,961.08-29,949.02-9,970.20

Finding the Fourth Proportional to 19,961.08, 29,949.02 and 9,970.20

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Solution

The fourth proportional to 19,961.08, 29,949.02 and 9,970.20 is: 14,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.08 : 29,949.02 = 9,970.20 : x
  2. Step 2: Convert to fraction form
    19,961.08/29,949.02 = 9,970.20/x
  3. Step 3: Cross multiply
    19,961.08x = 29,949.02 × 9,970.20
  4. Step 4: Simplify right side
    19,961.08x = 298,597,719.20
  5. Step 5: Solve for x
    x = 298,597,719.20/19,961.08
  6. Step 6: Final answer
    x = 14,959.00

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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.