Home / 25,186.56-34,748.64-15,751.68

Finding the Fourth Proportional to 25,186.56, 34,748.64 and 15,751.68

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Solution

The fourth proportional to 25,186.56, 34,748.64 and 15,751.68 is: 21,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,186.56 : 34,748.64 = 15,751.68 : x
  2. Step 2: Convert to fraction form
    25,186.56/34,748.64 = 15,751.68/x
  3. Step 3: Cross multiply
    25,186.56x = 34,748.64 × 15,751.68
  4. Step 4: Simplify right side
    25,186.56x = 547,349,457.72
  5. Step 5: Solve for x
    x = 547,349,457.72/25,186.56
  6. Step 6: Final answer
    x = 21,731.81

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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.