Home / 21,323.52-29,424.96-11,892.60

Finding the Fourth Proportional to 21,323.52, 29,424.96 and 11,892.60

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Solution

The fourth proportional to 21,323.52, 29,424.96 and 11,892.60 is: 16,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.52 : 29,424.96 = 11,892.60 : x
  2. Step 2: Convert to fraction form
    21,323.52/29,424.96 = 11,892.60/x
  3. Step 3: Cross multiply
    21,323.52x = 29,424.96 × 11,892.60
  4. Step 4: Simplify right side
    21,323.52x = 349,939,279.30
  5. Step 5: Solve for x
    x = 349,939,279.30/21,323.52
  6. Step 6: Final answer
    x = 16,410.95

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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.