Home / 31,619.48-43,610.28-22,416.80

Finding the Fourth Proportional to 31,619.48, 43,610.28 and 22,416.80

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Solution

The fourth proportional to 31,619.48, 43,610.28 and 22,416.80 is: 30,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.48 : 43,610.28 = 22,416.80 : x
  2. Step 2: Convert to fraction form
    31,619.48/43,610.28 = 22,416.80/x
  3. Step 3: Cross multiply
    31,619.48x = 43,610.28 × 22,416.80
  4. Step 4: Simplify right side
    31,619.48x = 977,602,924.70
  5. Step 5: Solve for x
    x = 977,602,924.70/31,619.48
  6. Step 6: Final answer
    x = 30,917.74

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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.