Home / 22,020.60-30,346.47-21,615.74

Finding the Fourth Proportional to 22,020.60, 30,346.47 and 21,615.74

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Solution

The fourth proportional to 22,020.60, 30,346.47 and 21,615.74 is: 29,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.60 : 30,346.47 = 21,615.74 : x
  2. Step 2: Convert to fraction form
    22,020.60/30,346.47 = 21,615.74/x
  3. Step 3: Cross multiply
    22,020.60x = 30,346.47 × 21,615.74
  4. Step 4: Simplify right side
    22,020.60x = 655,961,405.44
  5. Step 5: Solve for x
    x = 655,961,405.44/22,020.60
  6. Step 6: Final answer
    x = 29,788.53

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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.