Home / 31,820.56-47,727.10-8,448.80

Finding the Fourth Proportional to 31,820.56, 47,727.10 and 8,448.80

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Solution

The fourth proportional to 31,820.56, 47,727.10 and 8,448.80 is: 12,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.56 : 47,727.10 = 8,448.80 : x
  2. Step 2: Convert to fraction form
    31,820.56/47,727.10 = 8,448.80/x
  3. Step 3: Cross multiply
    31,820.56x = 47,727.10 × 8,448.80
  4. Step 4: Simplify right side
    31,820.56x = 403,236,722.48
  5. Step 5: Solve for x
    x = 403,236,722.48/31,820.56
  6. Step 6: Final answer
    x = 12,672.21

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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.