Home / 29,299.80-40,433.70-15,871.32

Finding the Fourth Proportional to 29,299.80, 40,433.70 and 15,871.32

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Solution

The fourth proportional to 29,299.80, 40,433.70 and 15,871.32 is: 21,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.80 : 40,433.70 = 15,871.32 : x
  2. Step 2: Convert to fraction form
    29,299.80/40,433.70 = 15,871.32/x
  3. Step 3: Cross multiply
    29,299.80x = 40,433.70 × 15,871.32
  4. Step 4: Simplify right side
    29,299.80x = 641,736,191.48
  5. Step 5: Solve for x
    x = 641,736,191.48/29,299.80
  6. Step 6: Final answer
    x = 21,902.41

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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.