Home / 13,559.52-20,335.44-4,320.48

Finding the Fourth Proportional to 13,559.52, 20,335.44 and 4,320.48

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Solution

The fourth proportional to 13,559.52, 20,335.44 and 4,320.48 is: 6,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.52 : 20,335.44 = 4,320.48 : x
  2. Step 2: Convert to fraction form
    13,559.52/20,335.44 = 4,320.48/x
  3. Step 3: Cross multiply
    13,559.52x = 20,335.44 × 4,320.48
  4. Step 4: Simplify right side
    13,559.52x = 87,858,861.81
  5. Step 5: Solve for x
    x = 87,858,861.81/13,559.52
  6. Step 6: Final answer
    x = 6,479.50

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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.