Home / 22,265.88-30,729.63-13,313.28

Finding the Fourth Proportional to 22,265.88, 30,729.63 and 13,313.28

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Solution

The fourth proportional to 22,265.88, 30,729.63 and 13,313.28 is: 18,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.88 : 30,729.63 = 13,313.28 : x
  2. Step 2: Convert to fraction form
    22,265.88/30,729.63 = 13,313.28/x
  3. Step 3: Cross multiply
    22,265.88x = 30,729.63 × 13,313.28
  4. Step 4: Simplify right side
    22,265.88x = 409,112,168.49
  5. Step 5: Solve for x
    x = 409,112,168.49/22,265.88
  6. Step 6: Final answer
    x = 18,373.95

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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.