Home / 19,027.20-28,497.60-9,782.40

Finding the Fourth Proportional to 19,027.20, 28,497.60 and 9,782.40

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Solution

The fourth proportional to 19,027.20, 28,497.60 and 9,782.40 is: 14,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,027.20 : 28,497.60 = 9,782.40 : x
  2. Step 2: Convert to fraction form
    19,027.20/28,497.60 = 9,782.40/x
  3. Step 3: Cross multiply
    19,027.20x = 28,497.60 × 9,782.40
  4. Step 4: Simplify right side
    19,027.20x = 278,774,922.24
  5. Step 5: Solve for x
    x = 278,774,922.24/19,027.20
  6. Step 6: Final answer
    x = 14,651.39

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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.