Home / 21,353.56-31,983.54-17,613.64

Finding the Fourth Proportional to 21,353.56, 31,983.54 and 17,613.64

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Solution

The fourth proportional to 21,353.56, 31,983.54 and 17,613.64 is: 26,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.56 : 31,983.54 = 17,613.64 : x
  2. Step 2: Convert to fraction form
    21,353.56/31,983.54 = 17,613.64/x
  3. Step 3: Cross multiply
    21,353.56x = 31,983.54 × 17,613.64
  4. Step 4: Simplify right side
    21,353.56x = 563,346,559.49
  5. Step 5: Solve for x
    x = 563,346,559.49/21,353.56
  6. Step 6: Final answer
    x = 26,381.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.