Home / 19,829.52-29,790.76-18,708.72

Finding the Fourth Proportional to 19,829.52, 29,790.76 and 18,708.72

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Solution

The fourth proportional to 19,829.52, 29,790.76 and 18,708.72 is: 28,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.52 : 29,790.76 = 18,708.72 : x
  2. Step 2: Convert to fraction form
    19,829.52/29,790.76 = 18,708.72/x
  3. Step 3: Cross multiply
    19,829.52x = 29,790.76 × 18,708.72
  4. Step 4: Simplify right side
    19,829.52x = 557,346,987.43
  5. Step 5: Solve for x
    x = 557,346,987.43/19,829.52
  6. Step 6: Final answer
    x = 28,106.93

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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.