Home / 27,316.08-37,696.32-15,381

Finding the Fourth Proportional to 27,316.08, 37,696.32 and 15,381

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Solution

The fourth proportional to 27,316.08, 37,696.32 and 15,381 is: 21,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,316.08 : 37,696.32 = 15,381 : x
  2. Step 2: Convert to fraction form
    27,316.08/37,696.32 = 15,381/x
  3. Step 3: Cross multiply
    27,316.08x = 37,696.32 × 15,381
  4. Step 4: Simplify right side
    27,316.08x = 579,807,097.92
  5. Step 5: Solve for x
    x = 579,807,097.92/27,316.08
  6. Step 6: Final answer
    x = 21,225.85

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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.