Home / 20,574.28-30,860.40-7,247.94

Finding the Fourth Proportional to 20,574.28, 30,860.40 and 7,247.94

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Solution

The fourth proportional to 20,574.28, 30,860.40 and 7,247.94 is: 10,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.28 : 30,860.40 = 7,247.94 : x
  2. Step 2: Convert to fraction form
    20,574.28/30,860.40 = 7,247.94/x
  3. Step 3: Cross multiply
    20,574.28x = 30,860.40 × 7,247.94
  4. Step 4: Simplify right side
    20,574.28x = 223,674,327.58
  5. Step 5: Solve for x
    x = 223,674,327.58/20,574.28
  6. Step 6: Final answer
    x = 10,871.55

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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.