Home / 21,864.67-30,170.47-12,433.43

Finding the Fourth Proportional to 21,864.67, 30,170.47 and 12,433.43

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Solution

The fourth proportional to 21,864.67, 30,170.47 and 12,433.43 is: 17,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.67 : 30,170.47 = 12,433.43 : x
  2. Step 2: Convert to fraction form
    21,864.67/30,170.47 = 12,433.43/x
  3. Step 3: Cross multiply
    21,864.67x = 30,170.47 × 12,433.43
  4. Step 4: Simplify right side
    21,864.67x = 375,122,426.81
  5. Step 5: Solve for x
    x = 375,122,426.81/21,864.67
  6. Step 6: Final answer
    x = 17,156.56

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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.