Home / 35,811.72-49,419.90-19,895.88

Finding the Fourth Proportional to 35,811.72, 49,419.90 and 19,895.88

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Solution

The fourth proportional to 35,811.72, 49,419.90 and 19,895.88 is: 27,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.72 : 49,419.90 = 19,895.88 : x
  2. Step 2: Convert to fraction form
    35,811.72/49,419.90 = 19,895.88/x
  3. Step 3: Cross multiply
    35,811.72x = 49,419.90 × 19,895.88
  4. Step 4: Simplify right side
    35,811.72x = 983,252,400.01
  5. Step 5: Solve for x
    x = 983,252,400.01/35,811.72
  6. Step 6: Final answer
    x = 27,456.16

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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.