Home / 21,549.54-29,738.95-13,049.86

Finding the Fourth Proportional to 21,549.54, 29,738.95 and 13,049.86

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Solution

The fourth proportional to 21,549.54, 29,738.95 and 13,049.86 is: 18,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.54 : 29,738.95 = 13,049.86 : x
  2. Step 2: Convert to fraction form
    21,549.54/29,738.95 = 13,049.86/x
  3. Step 3: Cross multiply
    21,549.54x = 29,738.95 × 13,049.86
  4. Step 4: Simplify right side
    21,549.54x = 388,089,082.84
  5. Step 5: Solve for x
    x = 388,089,082.84/21,549.54
  6. Step 6: Final answer
    x = 18,009.16

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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.