Home / 19,067.20-28,600.80-15,762.40

Finding the Fourth Proportional to 19,067.20, 28,600.80 and 15,762.40

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Solution

The fourth proportional to 19,067.20, 28,600.80 and 15,762.40 is: 23,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.20 : 28,600.80 = 15,762.40 : x
  2. Step 2: Convert to fraction form
    19,067.20/28,600.80 = 15,762.40/x
  3. Step 3: Cross multiply
    19,067.20x = 28,600.80 × 15,762.40
  4. Step 4: Simplify right side
    19,067.20x = 450,817,249.92
  5. Step 5: Solve for x
    x = 450,817,249.92/19,067.20
  6. Step 6: Final answer
    x = 23,643.60

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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.