Home / 21,924.03-30,252.93-12,969.78

Finding the Fourth Proportional to 21,924.03, 30,252.93 and 12,969.78

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Solution

The fourth proportional to 21,924.03, 30,252.93 and 12,969.78 is: 17,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,924.03 : 30,252.93 = 12,969.78 : x
  2. Step 2: Convert to fraction form
    21,924.03/30,252.93 = 12,969.78/x
  3. Step 3: Cross multiply
    21,924.03x = 30,252.93 × 12,969.78
  4. Step 4: Simplify right side
    21,924.03x = 392,373,846.46
  5. Step 5: Solve for x
    x = 392,373,846.46/21,924.03
  6. Step 6: Final answer
    x = 17,896.98

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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.