Home / 21,192.48-29,247.02-12,240.36

Finding the Fourth Proportional to 21,192.48, 29,247.02 and 12,240.36

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Solution

The fourth proportional to 21,192.48, 29,247.02 and 12,240.36 is: 16,892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.48 : 29,247.02 = 12,240.36 : x
  2. Step 2: Convert to fraction form
    21,192.48/29,247.02 = 12,240.36/x
  3. Step 3: Cross multiply
    21,192.48x = 29,247.02 × 12,240.36
  4. Step 4: Simplify right side
    21,192.48x = 357,994,053.73
  5. Step 5: Solve for x
    x = 357,994,053.73/21,192.48
  6. Step 6: Final answer
    x = 16,892.50

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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.