Home / 21,712.26-29,963.46-12,152.07

Finding the Fourth Proportional to 21,712.26, 29,963.46 and 12,152.07

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Solution

The fourth proportional to 21,712.26, 29,963.46 and 12,152.07 is: 16,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.26 : 29,963.46 = 12,152.07 : x
  2. Step 2: Convert to fraction form
    21,712.26/29,963.46 = 12,152.07/x
  3. Step 3: Cross multiply
    21,712.26x = 29,963.46 × 12,152.07
  4. Step 4: Simplify right side
    21,712.26x = 364,118,063.36
  5. Step 5: Solve for x
    x = 364,118,063.36/21,712.26
  6. Step 6: Final answer
    x = 16,770.16

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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.