Home / 19,155.60-28,739.52-6,678.72

Finding the Fourth Proportional to 19,155.60, 28,739.52 and 6,678.72

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Solution

The fourth proportional to 19,155.60, 28,739.52 and 6,678.72 is: 10,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.60 : 28,739.52 = 6,678.72 : x
  2. Step 2: Convert to fraction form
    19,155.60/28,739.52 = 6,678.72/x
  3. Step 3: Cross multiply
    19,155.60x = 28,739.52 × 6,678.72
  4. Step 4: Simplify right side
    19,155.60x = 191,943,207.01
  5. Step 5: Solve for x
    x = 191,943,207.01/19,155.60
  6. Step 6: Final answer
    x = 10,020.21

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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.