Home / 26,431.89-36,473.43-15,821.31

Finding the Fourth Proportional to 26,431.89, 36,473.43 and 15,821.31

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Solution

The fourth proportional to 26,431.89, 36,473.43 and 15,821.31 is: 21,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.89 : 36,473.43 = 15,821.31 : x
  2. Step 2: Convert to fraction form
    26,431.89/36,473.43 = 15,821.31/x
  3. Step 3: Cross multiply
    26,431.89x = 36,473.43 × 15,821.31
  4. Step 4: Simplify right side
    26,431.89x = 577,057,442.79
  5. Step 5: Solve for x
    x = 577,057,442.79/26,431.89
  6. Step 6: Final answer
    x = 21,831.86

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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.