Home / 31,738.86-43,798.59-19,161.42

Finding the Fourth Proportional to 31,738.86, 43,798.59 and 19,161.42

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Solution

The fourth proportional to 31,738.86, 43,798.59 and 19,161.42 is: 26,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.86 : 43,798.59 = 19,161.42 : x
  2. Step 2: Convert to fraction form
    31,738.86/43,798.59 = 19,161.42/x
  3. Step 3: Cross multiply
    31,738.86x = 43,798.59 × 19,161.42
  4. Step 4: Simplify right side
    31,738.86x = 839,243,178.40
  5. Step 5: Solve for x
    x = 839,243,178.40/31,738.86
  6. Step 6: Final answer
    x = 26,442.13

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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.