Home / 25,382.54-35,031.94-15,312.43

Finding the Fourth Proportional to 25,382.54, 35,031.94 and 15,312.43

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Solution

The fourth proportional to 25,382.54, 35,031.94 and 15,312.43 is: 21,133.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,382.54 : 35,031.94 = 15,312.43 : x
  2. Step 2: Convert to fraction form
    25,382.54/35,031.94 = 15,312.43/x
  3. Step 3: Cross multiply
    25,382.54x = 35,031.94 × 15,312.43
  4. Step 4: Simplify right side
    25,382.54x = 536,424,129.01
  5. Step 5: Solve for x
    x = 536,424,129.01/25,382.54
  6. Step 6: Final answer
    x = 21,133.59

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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.