Home / 31,515.42-47,259.30-9,330.54

Finding the Fourth Proportional to 31,515.42, 47,259.30 and 9,330.54

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Solution

The fourth proportional to 31,515.42, 47,259.30 and 9,330.54 is: 13,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.42 : 47,259.30 = 9,330.54 : x
  2. Step 2: Convert to fraction form
    31,515.42/47,259.30 = 9,330.54/x
  3. Step 3: Cross multiply
    31,515.42x = 47,259.30 × 9,330.54
  4. Step 4: Simplify right side
    31,515.42x = 440,954,789.02
  5. Step 5: Solve for x
    x = 440,954,789.02/31,515.42
  6. Step 6: Final answer
    x = 13,991.72

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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.