Home / 31,983.81-44,135.57-17,642.78

Finding the Fourth Proportional to 31,983.81, 44,135.57 and 17,642.78

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Solution

The fourth proportional to 31,983.81, 44,135.57 and 17,642.78 is: 24,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,983.81 : 44,135.57 = 17,642.78 : x
  2. Step 2: Convert to fraction form
    31,983.81/44,135.57 = 17,642.78/x
  3. Step 3: Cross multiply
    31,983.81x = 44,135.57 × 17,642.78
  4. Step 4: Simplify right side
    31,983.81x = 778,674,151.68
  5. Step 5: Solve for x
    x = 778,674,151.68/31,983.81
  6. Step 6: Final answer
    x = 24,345.88

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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.