Home / 38,140.86-52,632.27-21,144.54

Finding the Fourth Proportional to 38,140.86, 52,632.27 and 21,144.54

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Solution

The fourth proportional to 38,140.86, 52,632.27 and 21,144.54 is: 29,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.86 : 52,632.27 = 21,144.54 : x
  2. Step 2: Convert to fraction form
    38,140.86/52,632.27 = 21,144.54/x
  3. Step 3: Cross multiply
    38,140.86x = 52,632.27 × 21,144.54
  4. Step 4: Simplify right side
    38,140.86x = 1,112,885,138.31
  5. Step 5: Solve for x
    x = 1,112,885,138.31/38,140.86
  6. Step 6: Final answer
    x = 29,178.29

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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.