Home / 21,349.61-29,460.23-12,395.37

Finding the Fourth Proportional to 21,349.61, 29,460.23 and 12,395.37

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Solution

The fourth proportional to 21,349.61, 29,460.23 and 12,395.37 is: 17,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.61 : 29,460.23 = 12,395.37 : x
  2. Step 2: Convert to fraction form
    21,349.61/29,460.23 = 12,395.37/x
  3. Step 3: Cross multiply
    21,349.61x = 29,460.23 × 12,395.37
  4. Step 4: Simplify right side
    21,349.61x = 365,170,380.40
  5. Step 5: Solve for x
    x = 365,170,380.40/21,349.61
  6. Step 6: Final answer
    x = 17,104.31

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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.