Home / 20,906.76-31,360.23-7,065.48

Finding the Fourth Proportional to 20,906.76, 31,360.23 and 7,065.48

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Solution

The fourth proportional to 20,906.76, 31,360.23 and 7,065.48 is: 10,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.76 : 31,360.23 = 7,065.48 : x
  2. Step 2: Convert to fraction form
    20,906.76/31,360.23 = 7,065.48/x
  3. Step 3: Cross multiply
    20,906.76x = 31,360.23 × 7,065.48
  4. Step 4: Simplify right side
    20,906.76x = 221,575,077.86
  5. Step 5: Solve for x
    x = 221,575,077.86/20,906.76
  6. Step 6: Final answer
    x = 10,598.25

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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.