Home / 21,504.02-29,672.80-12,549.47

Finding the Fourth Proportional to 21,504.02, 29,672.80 and 12,549.47

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Solution

The fourth proportional to 21,504.02, 29,672.80 and 12,549.47 is: 17,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.02 : 29,672.80 = 12,549.47 : x
  2. Step 2: Convert to fraction form
    21,504.02/29,672.80 = 12,549.47/x
  3. Step 3: Cross multiply
    21,504.02x = 29,672.80 × 12,549.47
  4. Step 4: Simplify right side
    21,504.02x = 372,377,733.68
  5. Step 5: Solve for x
    x = 372,377,733.68/21,504.02
  6. Step 6: Final answer
    x = 17,316.66

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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.