Home / 31,237.84-43,108.14-18,662.68

Finding the Fourth Proportional to 31,237.84, 43,108.14 and 18,662.68

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Solution

The fourth proportional to 31,237.84, 43,108.14 and 18,662.68 is: 25,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,237.84 : 43,108.14 = 18,662.68 : x
  2. Step 2: Convert to fraction form
    31,237.84/43,108.14 = 18,662.68/x
  3. Step 3: Cross multiply
    31,237.84x = 43,108.14 × 18,662.68
  4. Step 4: Simplify right side
    31,237.84x = 804,513,422.22
  5. Step 5: Solve for x
    x = 804,513,422.22/31,237.84
  6. Step 6: Final answer
    x = 25,754.45

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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.