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Finding the Fourth Proportional to 30,248.46, 41,741.82 and 16,820.28

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Solution

The fourth proportional to 30,248.46, 41,741.82 and 16,820.28 is: 23,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.46 : 41,741.82 = 16,820.28 : x
  2. Step 2: Convert to fraction form
    30,248.46/41,741.82 = 16,820.28/x
  3. Step 3: Cross multiply
    30,248.46x = 41,741.82 × 16,820.28
  4. Step 4: Simplify right side
    30,248.46x = 702,109,100.11
  5. Step 5: Solve for x
    x = 702,109,100.11/30,248.46
  6. Step 6: Final answer
    x = 23,211.40

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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.