Home / 25,740-38,577.36-10,931.52

Finding the Fourth Proportional to 25,740, 38,577.36 and 10,931.52

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Solution

The fourth proportional to 25,740, 38,577.36 and 10,931.52 is: 16,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740 : 38,577.36 = 10,931.52 : x
  2. Step 2: Convert to fraction form
    25,740/38,577.36 = 10,931.52/x
  3. Step 3: Cross multiply
    25,740x = 38,577.36 × 10,931.52
  4. Step 4: Simplify right side
    25,740x = 421,709,182.39
  5. Step 5: Solve for x
    x = 421,709,182.39/25,740
  6. Step 6: Final answer
    x = 16,383.42

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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.