Home / 29,349.12-40,501.16-15,919.86

Finding the Fourth Proportional to 29,349.12, 40,501.16 and 15,919.86

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Solution

The fourth proportional to 29,349.12, 40,501.16 and 15,919.86 is: 21,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,349.12 : 40,501.16 = 15,919.86 : x
  2. Step 2: Convert to fraction form
    29,349.12/40,501.16 = 15,919.86/x
  3. Step 3: Cross multiply
    29,349.12x = 40,501.16 × 15,919.86
  4. Step 4: Simplify right side
    29,349.12x = 644,772,797.04
  5. Step 5: Solve for x
    x = 644,772,797.04/29,349.12
  6. Step 6: Final answer
    x = 21,969.07

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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.