Home / 18,066.48-24,876.36-15,815.76

Finding the Fourth Proportional to 18,066.48, 24,876.36 and 15,815.76

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Solution

The fourth proportional to 18,066.48, 24,876.36 and 15,815.76 is: 21,777.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.48 : 24,876.36 = 15,815.76 : x
  2. Step 2: Convert to fraction form
    18,066.48/24,876.36 = 15,815.76/x
  3. Step 3: Cross multiply
    18,066.48x = 24,876.36 × 15,815.76
  4. Step 4: Simplify right side
    18,066.48x = 393,438,539.43
  5. Step 5: Solve for x
    x = 393,438,539.43/18,066.48
  6. Step 6: Final answer
    x = 21,777.27

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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.