Home / 20,130.17-30,197.36-6,804.73

Finding the Fourth Proportional to 20,130.17, 30,197.36 and 6,804.73

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Solution

The fourth proportional to 20,130.17, 30,197.36 and 6,804.73 is: 10,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.17 : 30,197.36 = 6,804.73 : x
  2. Step 2: Convert to fraction form
    20,130.17/30,197.36 = 6,804.73/x
  3. Step 3: Cross multiply
    20,130.17x = 30,197.36 × 6,804.73
  4. Step 4: Simplify right side
    20,130.17x = 205,484,881.51
  5. Step 5: Solve for x
    x = 205,484,881.51/20,130.17
  6. Step 6: Final answer
    x = 10,207.81

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Double scale
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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.