Home / 28,223.89-38,940.08-17,619.66

Finding the Fourth Proportional to 28,223.89, 38,940.08 and 17,619.66

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Solution

The fourth proportional to 28,223.89, 38,940.08 and 17,619.66 is: 24,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.89 : 38,940.08 = 17,619.66 : x
  2. Step 2: Convert to fraction form
    28,223.89/38,940.08 = 17,619.66/x
  3. Step 3: Cross multiply
    28,223.89x = 38,940.08 × 17,619.66
  4. Step 4: Simplify right side
    28,223.89x = 686,110,881.87
  5. Step 5: Solve for x
    x = 686,110,881.87/28,223.89
  6. Step 6: Final answer
    x = 24,309.58

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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.