Home / 31,999.07-47,996.80-9,812.38

Finding the Fourth Proportional to 31,999.07, 47,996.80 and 9,812.38

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Solution

The fourth proportional to 31,999.07, 47,996.80 and 9,812.38 is: 14,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,999.07 : 47,996.80 = 9,812.38 : x
  2. Step 2: Convert to fraction form
    31,999.07/47,996.80 = 9,812.38/x
  3. Step 3: Cross multiply
    31,999.07x = 47,996.80 × 9,812.38
  4. Step 4: Simplify right side
    31,999.07x = 470,962,840.38
  5. Step 5: Solve for x
    x = 470,962,840.38/31,999.07
  6. Step 6: Final answer
    x = 14,718.02

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1.5x scale

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.