Home / 30,308.54-45,444.75-12,525.38

Finding the Fourth Proportional to 30,308.54, 45,444.75 and 12,525.38

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Solution

The fourth proportional to 30,308.54, 45,444.75 and 12,525.38 is: 18,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.54 : 45,444.75 = 12,525.38 : x
  2. Step 2: Convert to fraction form
    30,308.54/45,444.75 = 12,525.38/x
  3. Step 3: Cross multiply
    30,308.54x = 45,444.75 × 12,525.38
  4. Step 4: Simplify right side
    30,308.54x = 569,212,762.76
  5. Step 5: Solve for x
    x = 569,212,762.76/30,308.54
  6. Step 6: Final answer
    x = 18,780.61

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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.