Home / 21,901.06-30,223.46-11,829.50

Finding the Fourth Proportional to 21,901.06, 30,223.46 and 11,829.50

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Solution

The fourth proportional to 21,901.06, 30,223.46 and 11,829.50 is: 16,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.06 : 30,223.46 = 11,829.50 : x
  2. Step 2: Convert to fraction form
    21,901.06/30,223.46 = 11,829.50/x
  3. Step 3: Cross multiply
    21,901.06x = 30,223.46 × 11,829.50
  4. Step 4: Simplify right side
    21,901.06x = 357,528,420.07
  5. Step 5: Solve for x
    x = 357,528,420.07/21,901.06
  6. Step 6: Final answer
    x = 16,324.71

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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.