Home / 31,983.60-47,975.40-9,796.80

Finding the Fourth Proportional to 31,983.60, 47,975.40 and 9,796.80

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Solution

The fourth proportional to 31,983.60, 47,975.40 and 9,796.80 is: 14,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.60 : 47,975.40 = 9,796.80 : x
  2. Step 2: Convert to fraction form
    31,983.60/47,975.40 = 9,796.80/x
  3. Step 3: Cross multiply
    31,983.60x = 47,975.40 × 9,796.80
  4. Step 4: Simplify right side
    31,983.60x = 470,005,398.72
  5. Step 5: Solve for x
    x = 470,005,398.72/31,983.60
  6. Step 6: Final answer
    x = 14,695.20

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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.