Home / 19,994.13-29,987.54-8,891.46

Finding the Fourth Proportional to 19,994.13, 29,987.54 and 8,891.46

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Solution

The fourth proportional to 19,994.13, 29,987.54 and 8,891.46 is: 13,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.13 : 29,987.54 = 8,891.46 : x
  2. Step 2: Convert to fraction form
    19,994.13/29,987.54 = 8,891.46/x
  3. Step 3: Cross multiply
    19,994.13x = 29,987.54 × 8,891.46
  4. Step 4: Simplify right side
    19,994.13x = 266,632,967.95
  5. Step 5: Solve for x
    x = 266,632,967.95/19,994.13
  6. Step 6: Final answer
    x = 13,335.56

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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.