Home / 23,141.96-31,938.90-13,207.88

Finding the Fourth Proportional to 23,141.96, 31,938.90 and 13,207.88

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Solution

The fourth proportional to 23,141.96, 31,938.90 and 13,207.88 is: 18,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,141.96 : 31,938.90 = 13,207.88 : x
  2. Step 2: Convert to fraction form
    23,141.96/31,938.90 = 13,207.88/x
  3. Step 3: Cross multiply
    23,141.96x = 31,938.90 × 13,207.88
  4. Step 4: Simplify right side
    23,141.96x = 421,845,158.53
  5. Step 5: Solve for x
    x = 421,845,158.53/23,141.96
  6. Step 6: Final answer
    x = 18,228.58

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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.