Home / 27,157.49-40,731.51-7,431.35

Finding the Fourth Proportional to 27,157.49, 40,731.51 and 7,431.35

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Solution

The fourth proportional to 27,157.49, 40,731.51 and 7,431.35 is: 11,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.49 : 40,731.51 = 7,431.35 : x
  2. Step 2: Convert to fraction form
    27,157.49/40,731.51 = 7,431.35/x
  3. Step 3: Cross multiply
    27,157.49x = 40,731.51 × 7,431.35
  4. Step 4: Simplify right side
    27,157.49x = 302,690,106.84
  5. Step 5: Solve for x
    x = 302,690,106.84/27,157.49
  6. Step 6: Final answer
    x = 11,145.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.