Home / 22,021.40-30,389.45-13,076.25

Finding the Fourth Proportional to 22,021.40, 30,389.45 and 13,076.25

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Solution

The fourth proportional to 22,021.40, 30,389.45 and 13,076.25 is: 18,045.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.40 : 30,389.45 = 13,076.25 : x
  2. Step 2: Convert to fraction form
    22,021.40/30,389.45 = 13,076.25/x
  3. Step 3: Cross multiply
    22,021.40x = 30,389.45 × 13,076.25
  4. Step 4: Simplify right side
    22,021.40x = 397,379,980.18
  5. Step 5: Solve for x
    x = 397,379,980.18/22,021.40
  6. Step 6: Final answer
    x = 18,045.18

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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.