Home / 19,428.86-29,133.24-6,279.51

Finding the Fourth Proportional to 19,428.86, 29,133.24 and 6,279.51

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Solution

The fourth proportional to 19,428.86, 29,133.24 and 6,279.51 is: 9,416.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.86 : 29,133.24 = 6,279.51 : x
  2. Step 2: Convert to fraction form
    19,428.86/29,133.24 = 6,279.51/x
  3. Step 3: Cross multiply
    19,428.86x = 29,133.24 × 6,279.51
  4. Step 4: Simplify right side
    19,428.86x = 182,942,471.91
  5. Step 5: Solve for x
    x = 182,942,471.91/19,428.86
  6. Step 6: Final answer
    x = 9,416.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.