Home / 35,009.10-48,310.80-19,899.78

Finding the Fourth Proportional to 35,009.10, 48,310.80 and 19,899.78

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Solution

The fourth proportional to 35,009.10, 48,310.80 and 19,899.78 is: 27,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,009.10 : 48,310.80 = 19,899.78 : x
  2. Step 2: Convert to fraction form
    35,009.10/48,310.80 = 19,899.78/x
  3. Step 3: Cross multiply
    35,009.10x = 48,310.80 × 19,899.78
  4. Step 4: Simplify right side
    35,009.10x = 961,374,291.62
  5. Step 5: Solve for x
    x = 961,374,291.62/35,009.10
  6. Step 6: Final answer
    x = 27,460.70

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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.