Home / 21,936.24-30,271.90-11,864.68

Finding the Fourth Proportional to 21,936.24, 30,271.90 and 11,864.68

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Solution

The fourth proportional to 21,936.24, 30,271.90 and 11,864.68 is: 16,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.24 : 30,271.90 = 11,864.68 : x
  2. Step 2: Convert to fraction form
    21,936.24/30,271.90 = 11,864.68/x
  3. Step 3: Cross multiply
    21,936.24x = 30,271.90 × 11,864.68
  4. Step 4: Simplify right side
    21,936.24x = 359,166,406.49
  5. Step 5: Solve for x
    x = 359,166,406.49/21,936.24
  6. Step 6: Final answer
    x = 16,373.20

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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.