Home / 19,368.90-29,049.86-5,327.12

Finding the Fourth Proportional to 19,368.90, 29,049.86 and 5,327.12

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Solution

The fourth proportional to 19,368.90, 29,049.86 and 5,327.12 is: 7,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.90 : 29,049.86 = 5,327.12 : x
  2. Step 2: Convert to fraction form
    19,368.90/29,049.86 = 5,327.12/x
  3. Step 3: Cross multiply
    19,368.90x = 29,049.86 × 5,327.12
  4. Step 4: Simplify right side
    19,368.90x = 154,751,918.32
  5. Step 5: Solve for x
    x = 154,751,918.32/19,368.90
  6. Step 6: Final answer
    x = 7,989.71

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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.