Home / 13,555.42-20,329.22-4,670.39

Finding the Fourth Proportional to 13,555.42, 20,329.22 and 4,670.39

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Solution

The fourth proportional to 13,555.42, 20,329.22 and 4,670.39 is: 7,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.42 : 20,329.22 = 4,670.39 : x
  2. Step 2: Convert to fraction form
    13,555.42/20,329.22 = 4,670.39/x
  3. Step 3: Cross multiply
    13,555.42x = 20,329.22 × 4,670.39
  4. Step 4: Simplify right side
    13,555.42x = 94,945,260.80
  5. Step 5: Solve for x
    x = 94,945,260.80/13,555.42
  6. Step 6: Final answer
    x = 7,004.23

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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.