Home / 28,368.96-39,150.72-15,793.92

Finding the Fourth Proportional to 28,368.96, 39,150.72 and 15,793.92

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Solution

The fourth proportional to 28,368.96, 39,150.72 and 15,793.92 is: 21,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.96 : 39,150.72 = 15,793.92 : x
  2. Step 2: Convert to fraction form
    28,368.96/39,150.72 = 15,793.92/x
  3. Step 3: Cross multiply
    28,368.96x = 39,150.72 × 15,793.92
  4. Step 4: Simplify right side
    28,368.96x = 618,343,339.62
  5. Step 5: Solve for x
    x = 618,343,339.62/28,368.96
  6. Step 6: Final answer
    x = 21,796.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.