Home / 38,010.43-52,454.38-20,782.86

Finding the Fourth Proportional to 38,010.43, 52,454.38 and 20,782.86

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Solution

The fourth proportional to 38,010.43, 52,454.38 and 20,782.86 is: 28,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,010.43 : 52,454.38 = 20,782.86 : x
  2. Step 2: Convert to fraction form
    38,010.43/52,454.38 = 20,782.86/x
  3. Step 3: Cross multiply
    38,010.43x = 52,454.38 × 20,782.86
  4. Step 4: Simplify right side
    38,010.43x = 1,090,152,035.93
  5. Step 5: Solve for x
    x = 1,090,152,035.93/38,010.43
  6. Step 6: Final answer
    x = 28,680.34

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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.