Home / 25,716.78-35,484.36-15,102.54

Finding the Fourth Proportional to 25,716.78, 35,484.36 and 15,102.54

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Solution

The fourth proportional to 25,716.78, 35,484.36 and 15,102.54 is: 20,838.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,716.78 : 35,484.36 = 15,102.54 : x
  2. Step 2: Convert to fraction form
    25,716.78/35,484.36 = 15,102.54/x
  3. Step 3: Cross multiply
    25,716.78x = 35,484.36 × 15,102.54
  4. Step 4: Simplify right side
    25,716.78x = 535,903,966.27
  5. Step 5: Solve for x
    x = 535,903,966.27/25,716.78
  6. Step 6: Final answer
    x = 20,838.69

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1.5x scale

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.