Home / 27,431.28-37,855.20-14,856

Finding the Fourth Proportional to 27,431.28, 37,855.20 and 14,856

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Solution

The fourth proportional to 27,431.28, 37,855.20 and 14,856 is: 20,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.28 : 37,855.20 = 14,856 : x
  2. Step 2: Convert to fraction form
    27,431.28/37,855.20 = 14,856/x
  3. Step 3: Cross multiply
    27,431.28x = 37,855.20 × 14,856
  4. Step 4: Simplify right side
    27,431.28x = 562,376,851.20
  5. Step 5: Solve for x
    x = 562,376,851.20/27,431.28
  6. Step 6: Final answer
    x = 20,501.30

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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.