Home / 21,192.30-31,725.27-12,847.14

Finding the Fourth Proportional to 21,192.30, 31,725.27 and 12,847.14

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Solution

The fourth proportional to 21,192.30, 31,725.27 and 12,847.14 is: 19,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.30 : 31,725.27 = 12,847.14 : x
  2. Step 2: Convert to fraction form
    21,192.30/31,725.27 = 12,847.14/x
  3. Step 3: Cross multiply
    21,192.30x = 31,725.27 × 12,847.14
  4. Step 4: Simplify right side
    21,192.30x = 407,578,985.23
  5. Step 5: Solve for x
    x = 407,578,985.23/21,192.30
  6. Step 6: Final answer
    x = 19,232.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.