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Finding the Fourth Proportional to 25,858, 35,688.36 and 15,250.24

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Solution

The fourth proportional to 25,858, 35,688.36 and 15,250.24 is: 21,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,858 : 35,688.36 = 15,250.24 : x
  2. Step 2: Convert to fraction form
    25,858/35,688.36 = 15,250.24/x
  3. Step 3: Cross multiply
    25,858x = 35,688.36 × 15,250.24
  4. Step 4: Simplify right side
    25,858x = 544,256,055.21
  5. Step 5: Solve for x
    x = 544,256,055.21/25,858
  6. Step 6: Final answer
    x = 21,047.88

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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.