Home / 30,248.08-41,742.48-16,820.56

Finding the Fourth Proportional to 30,248.08, 41,742.48 and 16,820.56

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Solution

The fourth proportional to 30,248.08, 41,742.48 and 16,820.56 is: 23,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.08 : 41,742.48 = 16,820.56 : x
  2. Step 2: Convert to fraction form
    30,248.08/41,742.48 = 16,820.56/x
  3. Step 3: Cross multiply
    30,248.08x = 41,742.48 × 16,820.56
  4. Step 4: Simplify right side
    30,248.08x = 702,131,889.39
  5. Step 5: Solve for x
    x = 702,131,889.39/30,248.08
  6. Step 6: Final answer
    x = 23,212.44

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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.