Home / 22,938.21-31,654.44-12,869.19

Finding the Fourth Proportional to 22,938.21, 31,654.44 and 12,869.19

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Solution

The fourth proportional to 22,938.21, 31,654.44 and 12,869.19 is: 17,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,938.21 : 31,654.44 = 12,869.19 : x
  2. Step 2: Convert to fraction form
    22,938.21/31,654.44 = 12,869.19/x
  3. Step 3: Cross multiply
    22,938.21x = 31,654.44 × 12,869.19
  4. Step 4: Simplify right side
    22,938.21x = 407,367,002.70
  5. Step 5: Solve for x
    x = 407,367,002.70/22,938.21
  6. Step 6: Final answer
    x = 17,759.32

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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.