Home / 29,507.12-40,720.82-16,078.74

Finding the Fourth Proportional to 29,507.12, 40,720.82 and 16,078.74

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Solution

The fourth proportional to 29,507.12, 40,720.82 and 16,078.74 is: 22,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,507.12 : 40,720.82 = 16,078.74 : x
  2. Step 2: Convert to fraction form
    29,507.12/40,720.82 = 16,078.74/x
  3. Step 3: Cross multiply
    29,507.12x = 40,720.82 × 16,078.74
  4. Step 4: Simplify right side
    29,507.12x = 654,739,477.37
  5. Step 5: Solve for x
    x = 654,739,477.37/29,507.12
  6. Step 6: Final answer
    x = 22,189.20

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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.