Home / 20,119.48-30,185.39-9,602.91

Finding the Fourth Proportional to 20,119.48, 30,185.39 and 9,602.91

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Solution

The fourth proportional to 20,119.48, 30,185.39 and 9,602.91 is: 14,407.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.48 : 30,185.39 = 9,602.91 : x
  2. Step 2: Convert to fraction form
    20,119.48/30,185.39 = 9,602.91/x
  3. Step 3: Cross multiply
    20,119.48x = 30,185.39 × 9,602.91
  4. Step 4: Simplify right side
    20,119.48x = 289,867,607.49
  5. Step 5: Solve for x
    x = 289,867,607.49/20,119.48
  6. Step 6: Final answer
    x = 14,407.31

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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.