Home / 26,728.50-36,889.47-15,243.43

Finding the Fourth Proportional to 26,728.50, 36,889.47 and 15,243.43

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Solution

The fourth proportional to 26,728.50, 36,889.47 and 15,243.43 is: 21,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.50 : 36,889.47 = 15,243.43 : x
  2. Step 2: Convert to fraction form
    26,728.50/36,889.47 = 15,243.43/x
  3. Step 3: Cross multiply
    26,728.50x = 36,889.47 × 15,243.43
  4. Step 4: Simplify right side
    26,728.50x = 562,321,977.46
  5. Step 5: Solve for x
    x = 562,321,977.46/26,728.50
  6. Step 6: Final answer
    x = 21,038.30

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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.