Home / 22,741.36-31,381.80-12,669.20

Finding the Fourth Proportional to 22,741.36, 31,381.80 and 12,669.20

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Solution

The fourth proportional to 22,741.36, 31,381.80 and 12,669.20 is: 17,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,741.36 : 31,381.80 = 12,669.20 : x
  2. Step 2: Convert to fraction form
    22,741.36/31,381.80 = 12,669.20/x
  3. Step 3: Cross multiply
    22,741.36x = 31,381.80 × 12,669.20
  4. Step 4: Simplify right side
    22,741.36x = 397,582,300.56
  5. Step 5: Solve for x
    x = 397,582,300.56/22,741.36
  6. Step 6: Final answer
    x = 17,482.78

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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.