Home / 43,285.20-64,911.60-15,194.40

Finding the Fourth Proportional to 43,285.20, 64,911.60 and 15,194.40

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Solution

The fourth proportional to 43,285.20, 64,911.60 and 15,194.40 is: 22,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,285.20 : 64,911.60 = 15,194.40 : x
  2. Step 2: Convert to fraction form
    43,285.20/64,911.60 = 15,194.40/x
  3. Step 3: Cross multiply
    43,285.20x = 64,911.60 × 15,194.40
  4. Step 4: Simplify right side
    43,285.20x = 986,292,815.04
  5. Step 5: Solve for x
    x = 986,292,815.04/43,285.20
  6. Step 6: Final answer
    x = 22,785.91

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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.