Home / 25,606.74-38,415.28-10,815.60

Finding the Fourth Proportional to 25,606.74, 38,415.28 and 10,815.60

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Solution

The fourth proportional to 25,606.74, 38,415.28 and 10,815.60 is: 16,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,606.74 : 38,415.28 = 10,815.60 : x
  2. Step 2: Convert to fraction form
    25,606.74/38,415.28 = 10,815.60/x
  3. Step 3: Cross multiply
    25,606.74x = 38,415.28 × 10,815.60
  4. Step 4: Simplify right side
    25,606.74x = 415,484,302.37
  5. Step 5: Solve for x
    x = 415,484,302.37/25,606.74
  6. Step 6: Final answer
    x = 16,225.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.