Home / 19,359.80-29,018.10-9,996.20

Finding the Fourth Proportional to 19,359.80, 29,018.10 and 9,996.20

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Solution

The fourth proportional to 19,359.80, 29,018.10 and 9,996.20 is: 14,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.80 : 29,018.10 = 9,996.20 : x
  2. Step 2: Convert to fraction form
    19,359.80/29,018.10 = 9,996.20/x
  3. Step 3: Cross multiply
    19,359.80x = 29,018.10 × 9,996.20
  4. Step 4: Simplify right side
    19,359.80x = 290,070,731.22
  5. Step 5: Solve for x
    x = 290,070,731.22/19,359.80
  6. Step 6: Final answer
    x = 14,983.15

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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.