Home / 18,705.10-28,058.61-17,759.22

Finding the Fourth Proportional to 18,705.10, 28,058.61 and 17,759.22

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Solution

The fourth proportional to 18,705.10, 28,058.61 and 17,759.22 is: 26,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.10 : 28,058.61 = 17,759.22 : x
  2. Step 2: Convert to fraction form
    18,705.10/28,058.61 = 17,759.22/x
  3. Step 3: Cross multiply
    18,705.10x = 28,058.61 × 17,759.22
  4. Step 4: Simplify right side
    18,705.10x = 498,299,027.88
  5. Step 5: Solve for x
    x = 498,299,027.88/18,705.10
  6. Step 6: Final answer
    x = 26,639.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.