Home / 21,003.44-31,508.04-9,316.40

Finding the Fourth Proportional to 21,003.44, 31,508.04 and 9,316.40

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Solution

The fourth proportional to 21,003.44, 31,508.04 and 9,316.40 is: 13,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.44 : 31,508.04 = 9,316.40 : x
  2. Step 2: Convert to fraction form
    21,003.44/31,508.04 = 9,316.40/x
  3. Step 3: Cross multiply
    21,003.44x = 31,508.04 × 9,316.40
  4. Step 4: Simplify right side
    21,003.44x = 293,541,503.86
  5. Step 5: Solve for x
    x = 293,541,503.86/21,003.44
  6. Step 6: Final answer
    x = 13,975.88

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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.