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Finding the Fourth Proportional to 35,138.80, 48,489.48 and 19,220.08

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Solution

The fourth proportional to 35,138.80, 48,489.48 and 19,220.08 is: 26,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.80 : 48,489.48 = 19,220.08 : x
  2. Step 2: Convert to fraction form
    35,138.80/48,489.48 = 19,220.08/x
  3. Step 3: Cross multiply
    35,138.80x = 48,489.48 × 19,220.08
  4. Step 4: Simplify right side
    35,138.80x = 931,971,684.76
  5. Step 5: Solve for x
    x = 931,971,684.76/35,138.80
  6. Step 6: Final answer
    x = 26,522.58

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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.