Home / 20,199.45-30,306.47-7,053.76

Finding the Fourth Proportional to 20,199.45, 30,306.47 and 7,053.76

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Solution

The fourth proportional to 20,199.45, 30,306.47 and 7,053.76 is: 10,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.45 : 30,306.47 = 7,053.76 : x
  2. Step 2: Convert to fraction form
    20,199.45/30,306.47 = 7,053.76/x
  3. Step 3: Cross multiply
    20,199.45x = 30,306.47 × 7,053.76
  4. Step 4: Simplify right side
    20,199.45x = 213,774,565.83
  5. Step 5: Solve for x
    x = 213,774,565.83/20,199.45
  6. Step 6: Final answer
    x = 10,583.19

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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.