Home / 31,536.80-43,518.80-17,389.76

Finding the Fourth Proportional to 31,536.80, 43,518.80 and 17,389.76

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Solution

The fourth proportional to 31,536.80, 43,518.80 and 17,389.76 is: 23,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.80 : 43,518.80 = 17,389.76 : x
  2. Step 2: Convert to fraction form
    31,536.80/43,518.80 = 17,389.76/x
  3. Step 3: Cross multiply
    31,536.80x = 43,518.80 × 17,389.76
  4. Step 4: Simplify right side
    31,536.80x = 756,781,487.49
  5. Step 5: Solve for x
    x = 756,781,487.49/31,536.80
  6. Step 6: Final answer
    x = 23,996.77

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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.