Home / 22,539.60-31,100.22-12,847.68

Finding the Fourth Proportional to 22,539.60, 31,100.22 and 12,847.68

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Solution

The fourth proportional to 22,539.60, 31,100.22 and 12,847.68 is: 17,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,539.60 : 31,100.22 = 12,847.68 : x
  2. Step 2: Convert to fraction form
    22,539.60/31,100.22 = 12,847.68/x
  3. Step 3: Cross multiply
    22,539.60x = 31,100.22 × 12,847.68
  4. Step 4: Simplify right side
    22,539.60x = 399,565,674.49
  5. Step 5: Solve for x
    x = 399,565,674.49/22,539.60
  6. Step 6: Final answer
    x = 17,727.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.