Home / 21,923.56-30,254.46-12,492.28

Finding the Fourth Proportional to 21,923.56, 30,254.46 and 12,492.28

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Solution

The fourth proportional to 21,923.56, 30,254.46 and 12,492.28 is: 17,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.56 : 30,254.46 = 12,492.28 : x
  2. Step 2: Convert to fraction form
    21,923.56/30,254.46 = 12,492.28/x
  3. Step 3: Cross multiply
    21,923.56x = 30,254.46 × 12,492.28
  4. Step 4: Simplify right side
    21,923.56x = 377,947,185.57
  5. Step 5: Solve for x
    x = 377,947,185.57/21,923.56
  6. Step 6: Final answer
    x = 17,239.32

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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.