Home / 34,390.91-47,439.29-21,623.86

Finding the Fourth Proportional to 34,390.91, 47,439.29 and 21,623.86

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Solution

The fourth proportional to 34,390.91, 47,439.29 and 21,623.86 is: 29,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.91 : 47,439.29 = 21,623.86 : x
  2. Step 2: Convert to fraction form
    34,390.91/47,439.29 = 21,623.86/x
  3. Step 3: Cross multiply
    34,390.91x = 47,439.29 × 21,623.86
  4. Step 4: Simplify right side
    34,390.91x = 1,025,820,500.92
  5. Step 5: Solve for x
    x = 1,025,820,500.92/34,390.91
  6. Step 6: Final answer
    x = 29,828.25

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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.