Home / 20,320.23-30,472.77-7,169.07

Finding the Fourth Proportional to 20,320.23, 30,472.77 and 7,169.07

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Solution

The fourth proportional to 20,320.23, 30,472.77 and 7,169.07 is: 10,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.23 : 30,472.77 = 7,169.07 : x
  2. Step 2: Convert to fraction form
    20,320.23/30,472.77 = 7,169.07/x
  3. Step 3: Cross multiply
    20,320.23x = 30,472.77 × 7,169.07
  4. Step 4: Simplify right side
    20,320.23x = 218,461,421.22
  5. Step 5: Solve for x
    x = 218,461,421.22/20,320.23
  6. Step 6: Final answer
    x = 10,750.93

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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.