Home / 22,731.12-31,368.20-12,659.22

Finding the Fourth Proportional to 22,731.12, 31,368.20 and 12,659.22

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Solution

The fourth proportional to 22,731.12, 31,368.20 and 12,659.22 is: 17,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,731.12 : 31,368.20 = 12,659.22 : x
  2. Step 2: Convert to fraction form
    22,731.12/31,368.20 = 12,659.22/x
  3. Step 3: Cross multiply
    22,731.12x = 31,368.20 × 12,659.22
  4. Step 4: Simplify right side
    22,731.12x = 397,096,881.51
  5. Step 5: Solve for x
    x = 397,096,881.51/22,731.12
  6. Step 6: Final answer
    x = 17,469.31

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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.