Home / 30,648.64-42,296.12-17,222.48

Finding the Fourth Proportional to 30,648.64, 42,296.12 and 17,222.48

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Solution

The fourth proportional to 30,648.64, 42,296.12 and 17,222.48 is: 23,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.64 : 42,296.12 = 17,222.48 : x
  2. Step 2: Convert to fraction form
    30,648.64/42,296.12 = 17,222.48/x
  3. Step 3: Cross multiply
    30,648.64x = 42,296.12 × 17,222.48
  4. Step 4: Simplify right side
    30,648.64x = 728,444,080.78
  5. Step 5: Solve for x
    x = 728,444,080.78/30,648.64
  6. Step 6: Final answer
    x = 23,767.58

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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.