Home / 31,318.72-46,939.12-14,656.96

Finding the Fourth Proportional to 31,318.72, 46,939.12 and 14,656.96

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Solution

The fourth proportional to 31,318.72, 46,939.12 and 14,656.96 is: 21,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.72 : 46,939.12 = 14,656.96 : x
  2. Step 2: Convert to fraction form
    31,318.72/46,939.12 = 14,656.96/x
  3. Step 3: Cross multiply
    31,318.72x = 46,939.12 × 14,656.96
  4. Step 4: Simplify right side
    31,318.72x = 687,984,804.28
  5. Step 5: Solve for x
    x = 687,984,804.28/31,318.72
  6. Step 6: Final answer
    x = 21,967.21

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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.