Home / 21,222.06-29,256.03-14,914.86

Finding the Fourth Proportional to 21,222.06, 29,256.03 and 14,914.86

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Solution

The fourth proportional to 21,222.06, 29,256.03 and 14,914.86 is: 20,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.06 : 29,256.03 = 14,914.86 : x
  2. Step 2: Convert to fraction form
    21,222.06/29,256.03 = 14,914.86/x
  3. Step 3: Cross multiply
    21,222.06x = 29,256.03 × 14,914.86
  4. Step 4: Simplify right side
    21,222.06x = 436,349,591.61
  5. Step 5: Solve for x
    x = 436,349,591.61/21,222.06
  6. Step 6: Final answer
    x = 20,561.13

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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.