Home / 21,001.44-31,505.04-9,314.40

Finding the Fourth Proportional to 21,001.44, 31,505.04 and 9,314.40

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Solution

The fourth proportional to 21,001.44, 31,505.04 and 9,314.40 is: 13,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.44 : 31,505.04 = 9,314.40 : x
  2. Step 2: Convert to fraction form
    21,001.44/31,505.04 = 9,314.40/x
  3. Step 3: Cross multiply
    21,001.44x = 31,505.04 × 9,314.40
  4. Step 4: Simplify right side
    21,001.44x = 293,450,544.58
  5. Step 5: Solve for x
    x = 293,450,544.58/21,001.44
  6. Step 6: Final answer
    x = 13,972.88

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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.