Home / 20,046.96-30,072.40-6,897.60

Finding the Fourth Proportional to 20,046.96, 30,072.40 and 6,897.60

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Solution

The fourth proportional to 20,046.96, 30,072.40 and 6,897.60 is: 10,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.96 : 30,072.40 = 6,897.60 : x
  2. Step 2: Convert to fraction form
    20,046.96/30,072.40 = 6,897.60/x
  3. Step 3: Cross multiply
    20,046.96x = 30,072.40 × 6,897.60
  4. Step 4: Simplify right side
    20,046.96x = 207,427,386.24
  5. Step 5: Solve for x
    x = 207,427,386.24/20,046.96
  6. Step 6: Final answer
    x = 10,347.07

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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.