Home / 35,695.12-49,261.12-19,781.36

Finding the Fourth Proportional to 35,695.12, 49,261.12 and 19,781.36

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Solution

The fourth proportional to 35,695.12, 49,261.12 and 19,781.36 is: 27,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,695.12 : 49,261.12 = 19,781.36 : x
  2. Step 2: Convert to fraction form
    35,695.12/49,261.12 = 19,781.36/x
  3. Step 3: Cross multiply
    35,695.12x = 49,261.12 × 19,781.36
  4. Step 4: Simplify right side
    35,695.12x = 974,451,948.72
  5. Step 5: Solve for x
    x = 974,451,948.72/35,695.12
  6. Step 6: Final answer
    x = 27,299.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.