Home / 31,885.34-43,989.88-19,944.14

Finding the Fourth Proportional to 31,885.34, 43,989.88 and 19,944.14

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Solution

The fourth proportional to 31,885.34, 43,989.88 and 19,944.14 is: 27,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885.34 : 43,989.88 = 19,944.14 : x
  2. Step 2: Convert to fraction form
    31,885.34/43,989.88 = 19,944.14/x
  3. Step 3: Cross multiply
    31,885.34x = 43,989.88 × 19,944.14
  4. Step 4: Simplify right side
    31,885.34x = 877,340,055.49
  5. Step 5: Solve for x
    x = 877,340,055.49/31,885.34
  6. Step 6: Final answer
    x = 27,515.47

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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.