Home / 21,039.35-29,032.28-11,607.30

Finding the Fourth Proportional to 21,039.35, 29,032.28 and 11,607.30

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Solution

The fourth proportional to 21,039.35, 29,032.28 and 11,607.30 is: 16,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.35 : 29,032.28 = 11,607.30 : x
  2. Step 2: Convert to fraction form
    21,039.35/29,032.28 = 11,607.30/x
  3. Step 3: Cross multiply
    21,039.35x = 29,032.28 × 11,607.30
  4. Step 4: Simplify right side
    21,039.35x = 336,986,325.61
  5. Step 5: Solve for x
    x = 336,986,325.61/21,039.35
  6. Step 6: Final answer
    x = 16,016.96

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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.