Home / 31,347.72-46,960.04-18,172.40

Finding the Fourth Proportional to 31,347.72, 46,960.04 and 18,172.40

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Solution

The fourth proportional to 31,347.72, 46,960.04 and 18,172.40 is: 27,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.72 : 46,960.04 = 18,172.40 : x
  2. Step 2: Convert to fraction form
    31,347.72/46,960.04 = 18,172.40/x
  3. Step 3: Cross multiply
    31,347.72x = 46,960.04 × 18,172.40
  4. Step 4: Simplify right side
    31,347.72x = 853,376,630.90
  5. Step 5: Solve for x
    x = 853,376,630.90/31,347.72
  6. Step 6: Final answer
    x = 27,222.93

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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.