Home / 21,325.06-29,428.27-12,374.07

Finding the Fourth Proportional to 21,325.06, 29,428.27 and 12,374.07

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Solution

The fourth proportional to 21,325.06, 29,428.27 and 12,374.07 is: 17,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.06 : 29,428.27 = 12,374.07 : x
  2. Step 2: Convert to fraction form
    21,325.06/29,428.27 = 12,374.07/x
  3. Step 3: Cross multiply
    21,325.06x = 29,428.27 × 12,374.07
  4. Step 4: Simplify right side
    21,325.06x = 364,147,472.96
  5. Step 5: Solve for x
    x = 364,147,472.96/21,325.06
  6. Step 6: Final answer
    x = 17,076.04

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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.