Home / 30,788.64-42,490.17-17,360.46

Finding the Fourth Proportional to 30,788.64, 42,490.17 and 17,360.46

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Solution

The fourth proportional to 30,788.64, 42,490.17 and 17,360.46 is: 23,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.64 : 42,490.17 = 17,360.46 : x
  2. Step 2: Convert to fraction form
    30,788.64/42,490.17 = 17,360.46/x
  3. Step 3: Cross multiply
    30,788.64x = 42,490.17 × 17,360.46
  4. Step 4: Simplify right side
    30,788.64x = 737,648,896.68
  5. Step 5: Solve for x
    x = 737,648,896.68/30,788.64
  6. Step 6: Final answer
    x = 23,958.48

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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.