Home / 36,386.40-54,579.60-18,861.60

Finding the Fourth Proportional to 36,386.40, 54,579.60 and 18,861.60

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Solution

The fourth proportional to 36,386.40, 54,579.60 and 18,861.60 is: 28,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,386.40 : 54,579.60 = 18,861.60 : x
  2. Step 2: Convert to fraction form
    36,386.40/54,579.60 = 18,861.60/x
  3. Step 3: Cross multiply
    36,386.40x = 54,579.60 × 18,861.60
  4. Step 4: Simplify right side
    36,386.40x = 1,029,458,583.36
  5. Step 5: Solve for x
    x = 1,029,458,583.36/36,386.40
  6. Step 6: Final answer
    x = 28,292.40

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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.