Home / 26,971.58-37,217.70-15,638.72

Finding the Fourth Proportional to 26,971.58, 37,217.70 and 15,638.72

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Solution

The fourth proportional to 26,971.58, 37,217.70 and 15,638.72 is: 21,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,971.58 : 37,217.70 = 15,638.72 : x
  2. Step 2: Convert to fraction form
    26,971.58/37,217.70 = 15,638.72/x
  3. Step 3: Cross multiply
    26,971.58x = 37,217.70 × 15,638.72
  4. Step 4: Simplify right side
    26,971.58x = 582,037,189.34
  5. Step 5: Solve for x
    x = 582,037,189.34/26,971.58
  6. Step 6: Final answer
    x = 21,579.65

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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.