Home / 25,715.28-35,485.96-15,106

Finding the Fourth Proportional to 25,715.28, 35,485.96 and 15,106

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Solution

The fourth proportional to 25,715.28, 35,485.96 and 15,106 is: 20,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.28 : 35,485.96 = 15,106 : x
  2. Step 2: Convert to fraction form
    25,715.28/35,485.96 = 15,106/x
  3. Step 3: Cross multiply
    25,715.28x = 35,485.96 × 15,106
  4. Step 4: Simplify right side
    25,715.28x = 536,050,911.76
  5. Step 5: Solve for x
    x = 536,050,911.76/25,715.28
  6. Step 6: Final answer
    x = 20,845.62

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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.