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Finding the Fourth Proportional to 29,296.30, 40,428.94 and 15,867.67

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Solution

The fourth proportional to 29,296.30, 40,428.94 and 15,867.67 is: 21,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,296.30 : 40,428.94 = 15,867.67 : x
  2. Step 2: Convert to fraction form
    29,296.30/40,428.94 = 15,867.67/x
  3. Step 3: Cross multiply
    29,296.30x = 40,428.94 × 15,867.67
  4. Step 4: Simplify right side
    29,296.30x = 641,513,078.37
  5. Step 5: Solve for x
    x = 641,513,078.37/29,296.30
  6. Step 6: Final answer
    x = 21,897.41

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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.