Home / 20,333.44-30,460.16-13,386.88

Finding the Fourth Proportional to 20,333.44, 30,460.16 and 13,386.88

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Solution

The fourth proportional to 20,333.44, 30,460.16 and 13,386.88 is: 20,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.44 : 30,460.16 = 13,386.88 : x
  2. Step 2: Convert to fraction form
    20,333.44/30,460.16 = 13,386.88/x
  3. Step 3: Cross multiply
    20,333.44x = 30,460.16 × 13,386.88
  4. Step 4: Simplify right side
    20,333.44x = 407,766,506.70
  5. Step 5: Solve for x
    x = 407,766,506.70/20,333.44
  6. Step 6: Final answer
    x = 20,053.99

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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.