Home / 29,299.81-40,433.85-15,871.03

Finding the Fourth Proportional to 29,299.81, 40,433.85 and 15,871.03

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Solution

The fourth proportional to 29,299.81, 40,433.85 and 15,871.03 is: 21,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.81 : 40,433.85 = 15,871.03 : x
  2. Step 2: Convert to fraction form
    29,299.81/40,433.85 = 15,871.03/x
  3. Step 3: Cross multiply
    29,299.81x = 40,433.85 × 15,871.03
  4. Step 4: Simplify right side
    29,299.81x = 641,726,846.37
  5. Step 5: Solve for x
    x = 641,726,846.37/29,299.81
  6. Step 6: Final answer
    x = 21,902.08

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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.