Home / 29,355.88-40,511.11-16,780.90

Finding the Fourth Proportional to 29,355.88, 40,511.11 and 16,780.90

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Solution

The fourth proportional to 29,355.88, 40,511.11 and 16,780.90 is: 23,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,355.88 : 40,511.11 = 16,780.90 : x
  2. Step 2: Convert to fraction form
    29,355.88/40,511.11 = 16,780.90/x
  3. Step 3: Cross multiply
    29,355.88x = 40,511.11 × 16,780.90
  4. Step 4: Simplify right side
    29,355.88x = 679,812,683.24
  5. Step 5: Solve for x
    x = 679,812,683.24/29,355.88
  6. Step 6: Final answer
    x = 23,157.64

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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.