Home / 26,811.30-37,003.44-15,478.56

Finding the Fourth Proportional to 26,811.30, 37,003.44 and 15,478.56

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Solution

The fourth proportional to 26,811.30, 37,003.44 and 15,478.56 is: 21,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.30 : 37,003.44 = 15,478.56 : x
  2. Step 2: Convert to fraction form
    26,811.30/37,003.44 = 15,478.56/x
  3. Step 3: Cross multiply
    26,811.30x = 37,003.44 × 15,478.56
  4. Step 4: Simplify right side
    26,811.30x = 572,759,966.25
  5. Step 5: Solve for x
    x = 572,759,966.25/26,811.30
  6. Step 6: Final answer
    x = 21,362.63

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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.