Home / 30,530.64-45,801.40-15,735.54

Finding the Fourth Proportional to 30,530.64, 45,801.40 and 15,735.54

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Solution

The fourth proportional to 30,530.64, 45,801.40 and 15,735.54 is: 23,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.64 : 45,801.40 = 15,735.54 : x
  2. Step 2: Convert to fraction form
    30,530.64/45,801.40 = 15,735.54/x
  3. Step 3: Cross multiply
    30,530.64x = 45,801.40 × 15,735.54
  4. Step 4: Simplify right side
    30,530.64x = 720,709,761.76
  5. Step 5: Solve for x
    x = 720,709,761.76/30,530.64
  6. Step 6: Final answer
    x = 23,606.11

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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.