Home / 19,837.80-29,771.28-9,984.15

Finding the Fourth Proportional to 19,837.80, 29,771.28 and 9,984.15

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Solution

The fourth proportional to 19,837.80, 29,771.28 and 9,984.15 is: 14,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,837.80 : 29,771.28 = 9,984.15 : x
  2. Step 2: Convert to fraction form
    19,837.80/29,771.28 = 9,984.15/x
  3. Step 3: Cross multiply
    19,837.80x = 29,771.28 × 9,984.15
  4. Step 4: Simplify right side
    19,837.80x = 297,240,925.21
  5. Step 5: Solve for x
    x = 297,240,925.21/19,837.80
  6. Step 6: Final answer
    x = 14,983.56

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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.