Home / 29,296.64-40,429.40-15,867.92

Finding the Fourth Proportional to 29,296.64, 40,429.40 and 15,867.92

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Solution

The fourth proportional to 29,296.64, 40,429.40 and 15,867.92 is: 21,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,296.64 : 40,429.40 = 15,867.92 : x
  2. Step 2: Convert to fraction form
    29,296.64/40,429.40 = 15,867.92/x
  3. Step 3: Cross multiply
    29,296.64x = 40,429.40 × 15,867.92
  4. Step 4: Simplify right side
    29,296.64x = 641,530,484.85
  5. Step 5: Solve for x
    x = 641,530,484.85/29,296.64
  6. Step 6: Final answer
    x = 21,897.75

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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.