Home / 19,015.04-28,451.28-15,729.68

Finding the Fourth Proportional to 19,015.04, 28,451.28 and 15,729.68

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Solution

The fourth proportional to 19,015.04, 28,451.28 and 15,729.68 is: 23,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.04 : 28,451.28 = 15,729.68 : x
  2. Step 2: Convert to fraction form
    19,015.04/28,451.28 = 15,729.68/x
  3. Step 3: Cross multiply
    19,015.04x = 28,451.28 × 15,729.68
  4. Step 4: Simplify right side
    19,015.04x = 447,529,529.99
  5. Step 5: Solve for x
    x = 447,529,529.99/19,015.04
  6. Step 6: Final answer
    x = 23,535.56

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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.