Home / 29,412.63-40,616.33-18,820.85

Finding the Fourth Proportional to 29,412.63, 40,616.33 and 18,820.85

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Solution

The fourth proportional to 29,412.63, 40,616.33 and 18,820.85 is: 25,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,412.63 : 40,616.33 = 18,820.85 : x
  2. Step 2: Convert to fraction form
    29,412.63/40,616.33 = 18,820.85/x
  3. Step 3: Cross multiply
    29,412.63x = 40,616.33 × 18,820.85
  4. Step 4: Simplify right side
    29,412.63x = 764,433,557.29
  5. Step 5: Solve for x
    x = 764,433,557.29/29,412.63
  6. Step 6: Final answer
    x = 25,989.98

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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.