Home / 43,777.20-65,622.60-21,572.40

Finding the Fourth Proportional to 43,777.20, 65,622.60 and 21,572.40

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Solution

The fourth proportional to 43,777.20, 65,622.60 and 21,572.40 is: 32,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,777.20 : 65,622.60 = 21,572.40 : x
  2. Step 2: Convert to fraction form
    43,777.20/65,622.60 = 21,572.40/x
  3. Step 3: Cross multiply
    43,777.20x = 65,622.60 × 21,572.40
  4. Step 4: Simplify right side
    43,777.20x = 1,415,636,976.24
  5. Step 5: Solve for x
    x = 1,415,636,976.24/43,777.20
  6. Step 6: Final answer
    x = 32,337.31

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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.