Home / 29,715.96-40,999.86-18,380.01

Finding the Fourth Proportional to 29,715.96, 40,999.86 and 18,380.01

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Solution

The fourth proportional to 29,715.96, 40,999.86 and 18,380.01 is: 25,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,715.96 : 40,999.86 = 18,380.01 : x
  2. Step 2: Convert to fraction form
    29,715.96/40,999.86 = 18,380.01/x
  3. Step 3: Cross multiply
    29,715.96x = 40,999.86 × 18,380.01
  4. Step 4: Simplify right side
    29,715.96x = 753,577,836.80
  5. Step 5: Solve for x
    x = 753,577,836.80/29,715.96
  6. Step 6: Final answer
    x = 25,359.36

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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.