Home / 31,990.07-47,983.38-9,803.51

Finding the Fourth Proportional to 31,990.07, 47,983.38 and 9,803.51

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Solution

The fourth proportional to 31,990.07, 47,983.38 and 9,803.51 is: 14,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.07 : 47,983.38 = 9,803.51 : x
  2. Step 2: Convert to fraction form
    31,990.07/47,983.38 = 9,803.51/x
  3. Step 3: Cross multiply
    31,990.07x = 47,983.38 × 9,803.51
  4. Step 4: Simplify right side
    31,990.07x = 470,405,665.62
  5. Step 5: Solve for x
    x = 470,405,665.62/31,990.07
  6. Step 6: Final answer
    x = 14,704.74

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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.