Home / 31,966.60-47,945.70-9,782.20

Finding the Fourth Proportional to 31,966.60, 47,945.70 and 9,782.20

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Solution

The fourth proportional to 31,966.60, 47,945.70 and 9,782.20 is: 14,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.60 : 47,945.70 = 9,782.20 : x
  2. Step 2: Convert to fraction form
    31,966.60/47,945.70 = 9,782.20/x
  3. Step 3: Cross multiply
    31,966.60x = 47,945.70 × 9,782.20
  4. Step 4: Simplify right side
    31,966.60x = 469,014,426.54
  5. Step 5: Solve for x
    x = 469,014,426.54/31,966.60
  6. Step 6: Final answer
    x = 14,672.01

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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.