Home / 30,258.92-45,276.41-18,258.03

Finding the Fourth Proportional to 30,258.92, 45,276.41 and 18,258.03

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Solution

The fourth proportional to 30,258.92, 45,276.41 and 18,258.03 is: 27,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.92 : 45,276.41 = 18,258.03 : x
  2. Step 2: Convert to fraction form
    30,258.92/45,276.41 = 18,258.03/x
  3. Step 3: Cross multiply
    30,258.92x = 45,276.41 × 18,258.03
  4. Step 4: Simplify right side
    30,258.92x = 826,657,734.40
  5. Step 5: Solve for x
    x = 826,657,734.40/30,258.92
  6. Step 6: Final answer
    x = 27,319.48

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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.