Home / 20,663.04-30,986.80-7,512.16

Finding the Fourth Proportional to 20,663.04, 30,986.80 and 7,512.16

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Solution

The fourth proportional to 20,663.04, 30,986.80 and 7,512.16 is: 11,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.04 : 30,986.80 = 7,512.16 : x
  2. Step 2: Convert to fraction form
    20,663.04/30,986.80 = 7,512.16/x
  3. Step 3: Cross multiply
    20,663.04x = 30,986.80 × 7,512.16
  4. Step 4: Simplify right side
    20,663.04x = 232,777,799.49
  5. Step 5: Solve for x
    x = 232,777,799.49/20,663.04
  6. Step 6: Final answer
    x = 11,265.42

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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.