Home / 19,815.26-29,725.47-10,455.66

Finding the Fourth Proportional to 19,815.26, 29,725.47 and 10,455.66

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Solution

The fourth proportional to 19,815.26, 29,725.47 and 10,455.66 is: 15,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.26 : 29,725.47 = 10,455.66 : x
  2. Step 2: Convert to fraction form
    19,815.26/29,725.47 = 10,455.66/x
  3. Step 3: Cross multiply
    19,815.26x = 29,725.47 × 10,455.66
  4. Step 4: Simplify right side
    19,815.26x = 310,799,407.66
  5. Step 5: Solve for x
    x = 310,799,407.66/19,815.26
  6. Step 6: Final answer
    x = 15,684.86

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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.