Home / 25,742.56-38,529.60-15,889.72

Finding the Fourth Proportional to 25,742.56, 38,529.60 and 15,889.72

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Solution

The fourth proportional to 25,742.56, 38,529.60 and 15,889.72 is: 23,782.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.56 : 38,529.60 = 15,889.72 : x
  2. Step 2: Convert to fraction form
    25,742.56/38,529.60 = 15,889.72/x
  3. Step 3: Cross multiply
    25,742.56x = 38,529.60 × 15,889.72
  4. Step 4: Simplify right side
    25,742.56x = 612,224,555.71
  5. Step 5: Solve for x
    x = 612,224,555.71/25,742.56
  6. Step 6: Final answer
    x = 23,782.58

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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.