Home / 35,657.12-49,207.56-19,742.78

Finding the Fourth Proportional to 35,657.12, 49,207.56 and 19,742.78

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Solution

The fourth proportional to 35,657.12, 49,207.56 and 19,742.78 is: 27,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,657.12 : 49,207.56 = 19,742.78 : x
  2. Step 2: Convert to fraction form
    35,657.12/49,207.56 = 19,742.78/x
  3. Step 3: Cross multiply
    35,657.12x = 49,207.56 × 19,742.78
  4. Step 4: Simplify right side
    35,657.12x = 971,494,031.42
  5. Step 5: Solve for x
    x = 971,494,031.42/35,657.12
  6. Step 6: Final answer
    x = 27,245.44

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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.