Home / 20,220.01-30,309.36-7,061.56

Finding the Fourth Proportional to 20,220.01, 30,309.36 and 7,061.56

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Solution

The fourth proportional to 20,220.01, 30,309.36 and 7,061.56 is: 10,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.01 : 30,309.36 = 7,061.56 : x
  2. Step 2: Convert to fraction form
    20,220.01/30,309.36 = 7,061.56/x
  3. Step 3: Cross multiply
    20,220.01x = 30,309.36 × 7,061.56
  4. Step 4: Simplify right side
    20,220.01x = 214,031,261.95
  5. Step 5: Solve for x
    x = 214,031,261.95/20,220.01
  6. Step 6: Final answer
    x = 10,585.12

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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.