Home / 19,971.57-29,958.12-5,180.10

Finding the Fourth Proportional to 19,971.57, 29,958.12 and 5,180.10

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Solution

The fourth proportional to 19,971.57, 29,958.12 and 5,180.10 is: 7,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.57 : 29,958.12 = 5,180.10 : x
  2. Step 2: Convert to fraction form
    19,971.57/29,958.12 = 5,180.10/x
  3. Step 3: Cross multiply
    19,971.57x = 29,958.12 × 5,180.10
  4. Step 4: Simplify right side
    19,971.57x = 155,186,057.41
  5. Step 5: Solve for x
    x = 155,186,057.41/19,971.57
  6. Step 6: Final answer
    x = 7,770.35

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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.