Home / 21,040.10-29,045.87-13,084.89

Finding the Fourth Proportional to 21,040.10, 29,045.87 and 13,084.89

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Solution

The fourth proportional to 21,040.10, 29,045.87 and 13,084.89 is: 18,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.10 : 29,045.87 = 13,084.89 : x
  2. Step 2: Convert to fraction form
    21,040.10/29,045.87 = 13,084.89/x
  3. Step 3: Cross multiply
    21,040.10x = 29,045.87 × 13,084.89
  4. Step 4: Simplify right side
    21,040.10x = 380,062,015.21
  5. Step 5: Solve for x
    x = 380,062,015.21/21,040.10
  6. Step 6: Final answer
    x = 18,063.69

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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.