Home / 20,657.96-30,988.98-6,614.45

Finding the Fourth Proportional to 20,657.96, 30,988.98 and 6,614.45

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Solution

The fourth proportional to 20,657.96, 30,988.98 and 6,614.45 is: 9,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.96 : 30,988.98 = 6,614.45 : x
  2. Step 2: Convert to fraction form
    20,657.96/30,988.98 = 6,614.45/x
  3. Step 3: Cross multiply
    20,657.96x = 30,988.98 × 6,614.45
  4. Step 4: Simplify right side
    20,657.96x = 204,975,058.76
  5. Step 5: Solve for x
    x = 204,975,058.76/20,657.96
  6. Step 6: Final answer
    x = 9,922.33

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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.