Home / 30,390.08-45,584.60-13,738.46

Finding the Fourth Proportional to 30,390.08, 45,584.60 and 13,738.46

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Solution

The fourth proportional to 30,390.08, 45,584.60 and 13,738.46 is: 20,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.08 : 45,584.60 = 13,738.46 : x
  2. Step 2: Convert to fraction form
    30,390.08/45,584.60 = 13,738.46/x
  3. Step 3: Cross multiply
    30,390.08x = 45,584.60 × 13,738.46
  4. Step 4: Simplify right side
    30,390.08x = 626,261,907.10
  5. Step 5: Solve for x
    x = 626,261,907.10/30,390.08
  6. Step 6: Final answer
    x = 20,607.45

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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.