Home / 31,355.13-47,008.02-21,464.42

Finding the Fourth Proportional to 31,355.13, 47,008.02 and 21,464.42

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Solution

The fourth proportional to 31,355.13, 47,008.02 and 21,464.42 is: 32,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.13 : 47,008.02 = 21,464.42 : x
  2. Step 2: Convert to fraction form
    31,355.13/47,008.02 = 21,464.42/x
  3. Step 3: Cross multiply
    31,355.13x = 47,008.02 × 21,464.42
  4. Step 4: Simplify right side
    31,355.13x = 1,008,999,884.65
  5. Step 5: Solve for x
    x = 1,008,999,884.65/31,355.13
  6. Step 6: Final answer
    x = 32,179.74

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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.