Home / 35,439.32-53,142.30-13,246.80

Finding the Fourth Proportional to 35,439.32, 53,142.30 and 13,246.80

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Solution

The fourth proportional to 35,439.32, 53,142.30 and 13,246.80 is: 19,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,439.32 : 53,142.30 = 13,246.80 : x
  2. Step 2: Convert to fraction form
    35,439.32/53,142.30 = 13,246.80/x
  3. Step 3: Cross multiply
    35,439.32x = 53,142.30 × 13,246.80
  4. Step 4: Simplify right side
    35,439.32x = 703,965,419.64
  5. Step 5: Solve for x
    x = 703,965,419.64/35,439.32
  6. Step 6: Final answer
    x = 19,863.97

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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.