Home / 31,536.55-43,518.45-17,389.51

Finding the Fourth Proportional to 31,536.55, 43,518.45 and 17,389.51

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Solution

The fourth proportional to 31,536.55, 43,518.45 and 17,389.51 is: 23,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.55 : 43,518.45 = 17,389.51 : x
  2. Step 2: Convert to fraction form
    31,536.55/43,518.45 = 17,389.51/x
  3. Step 3: Cross multiply
    31,536.55x = 43,518.45 × 17,389.51
  4. Step 4: Simplify right side
    31,536.55x = 756,764,521.46
  5. Step 5: Solve for x
    x = 756,764,521.46/31,536.55
  6. Step 6: Final answer
    x = 23,996.43

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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.