Home / 26,970.34-37,218.72-15,639.56

Finding the Fourth Proportional to 26,970.34, 37,218.72 and 15,639.56

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Solution

The fourth proportional to 26,970.34, 37,218.72 and 15,639.56 is: 21,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,970.34 : 37,218.72 = 15,639.56 : x
  2. Step 2: Convert to fraction form
    26,970.34/37,218.72 = 15,639.56/x
  3. Step 3: Cross multiply
    26,970.34x = 37,218.72 × 15,639.56
  4. Step 4: Simplify right side
    26,970.34x = 582,084,180.05
  5. Step 5: Solve for x
    x = 582,084,180.05/26,970.34
  6. Step 6: Final answer
    x = 21,582.38

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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.