Home / 19,254.38-28,886.42-5,403.38

Finding the Fourth Proportional to 19,254.38, 28,886.42 and 5,403.38

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Solution

The fourth proportional to 19,254.38, 28,886.42 and 5,403.38 is: 8,106.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,254.38 : 28,886.42 = 5,403.38 : x
  2. Step 2: Convert to fraction form
    19,254.38/28,886.42 = 5,403.38/x
  3. Step 3: Cross multiply
    19,254.38x = 28,886.42 × 5,403.38
  4. Step 4: Simplify right side
    19,254.38x = 156,084,173.18
  5. Step 5: Solve for x
    x = 156,084,173.18/19,254.38
  6. Step 6: Final answer
    x = 8,106.43

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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.