Home / 19,638.24-29,449.26-7,948.32

Finding the Fourth Proportional to 19,638.24, 29,449.26 and 7,948.32

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Solution

The fourth proportional to 19,638.24, 29,449.26 and 7,948.32 is: 11,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.24 : 29,449.26 = 7,948.32 : x
  2. Step 2: Convert to fraction form
    19,638.24/29,449.26 = 7,948.32/x
  3. Step 3: Cross multiply
    19,638.24x = 29,449.26 × 7,948.32
  4. Step 4: Simplify right side
    19,638.24x = 234,072,142.24
  5. Step 5: Solve for x
    x = 234,072,142.24/19,638.24
  6. Step 6: Final answer
    x = 11,919.20

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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.