Home / 29,355.84-40,507.92-16,780.32

Finding the Fourth Proportional to 29,355.84, 40,507.92 and 16,780.32

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Solution

The fourth proportional to 29,355.84, 40,507.92 and 16,780.32 is: 23,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,355.84 : 40,507.92 = 16,780.32 : x
  2. Step 2: Convert to fraction form
    29,355.84/40,507.92 = 16,780.32/x
  3. Step 3: Cross multiply
    29,355.84x = 40,507.92 × 16,780.32
  4. Step 4: Simplify right side
    29,355.84x = 679,735,860.13
  5. Step 5: Solve for x
    x = 679,735,860.13/29,355.84
  6. Step 6: Final answer
    x = 23,155.05

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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.