Home / 28,092.32-38,766.66-15,516.80

Finding the Fourth Proportional to 28,092.32, 38,766.66 and 15,516.80

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Solution

The fourth proportional to 28,092.32, 38,766.66 and 15,516.80 is: 21,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.32 : 38,766.66 = 15,516.80 : x
  2. Step 2: Convert to fraction form
    28,092.32/38,766.66 = 15,516.80/x
  3. Step 3: Cross multiply
    28,092.32x = 38,766.66 × 15,516.80
  4. Step 4: Simplify right side
    28,092.32x = 601,534,509.89
  5. Step 5: Solve for x
    x = 601,534,509.89/28,092.32
  6. Step 6: Final answer
    x = 21,412.77

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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.