Home / 21,325.86-29,426.76-11,892.60

Finding the Fourth Proportional to 21,325.86, 29,426.76 and 11,892.60

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Solution

The fourth proportional to 21,325.86, 29,426.76 and 11,892.60 is: 16,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.86 : 29,426.76 = 11,892.60 : x
  2. Step 2: Convert to fraction form
    21,325.86/29,426.76 = 11,892.60/x
  3. Step 3: Cross multiply
    21,325.86x = 29,426.76 × 11,892.60
  4. Step 4: Simplify right side
    21,325.86x = 349,960,685.98
  5. Step 5: Solve for x
    x = 349,960,685.98/21,325.86
  6. Step 6: Final answer
    x = 16,410.16

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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.