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Finding the Fourth Proportional to 35,128.20, 48,478.02 and 19,213.08

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Solution

The fourth proportional to 35,128.20, 48,478.02 and 19,213.08 is: 26,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.20 : 48,478.02 = 19,213.08 : x
  2. Step 2: Convert to fraction form
    35,128.20/48,478.02 = 19,213.08/x
  3. Step 3: Cross multiply
    35,128.20x = 48,478.02 × 19,213.08
  4. Step 4: Simplify right side
    35,128.20x = 931,412,076.50
  5. Step 5: Solve for x
    x = 931,412,076.50/35,128.20
  6. Step 6: Final answer
    x = 26,514.65

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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.