Home / 21,693.40-29,933.76-12,133.24

Finding the Fourth Proportional to 21,693.40, 29,933.76 and 12,133.24

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Solution

The fourth proportional to 21,693.40, 29,933.76 and 12,133.24 is: 16,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,693.40 : 29,933.76 = 12,133.24 : x
  2. Step 2: Convert to fraction form
    21,693.40/29,933.76 = 12,133.24/x
  3. Step 3: Cross multiply
    21,693.40x = 29,933.76 × 12,133.24
  4. Step 4: Simplify right side
    21,693.40x = 363,193,494.18
  5. Step 5: Solve for x
    x = 363,193,494.18/21,693.40
  6. Step 6: Final answer
    x = 16,742.12

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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.