Home / 31,820.45-43,911.01-17,674.20

Finding the Fourth Proportional to 31,820.45, 43,911.01 and 17,674.20

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Solution

The fourth proportional to 31,820.45, 43,911.01 and 17,674.20 is: 24,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.45 : 43,911.01 = 17,674.20 : x
  2. Step 2: Convert to fraction form
    31,820.45/43,911.01 = 17,674.20/x
  3. Step 3: Cross multiply
    31,820.45x = 43,911.01 × 17,674.20
  4. Step 4: Simplify right side
    31,820.45x = 776,091,995.03
  5. Step 5: Solve for x
    x = 776,091,995.03/31,820.45
  6. Step 6: Final answer
    x = 24,389.73

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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.