Home / 30,342.75-45,483.52-12,548.85

Finding the Fourth Proportional to 30,342.75, 45,483.52 and 12,548.85

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Solution

The fourth proportional to 30,342.75, 45,483.52 and 12,548.85 is: 18,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.75 : 45,483.52 = 12,548.85 : x
  2. Step 2: Convert to fraction form
    30,342.75/45,483.52 = 12,548.85/x
  3. Step 3: Cross multiply
    30,342.75x = 45,483.52 × 12,548.85
  4. Step 4: Simplify right side
    30,342.75x = 570,765,642.53
  5. Step 5: Solve for x
    x = 570,765,642.53/30,342.75
  6. Step 6: Final answer
    x = 18,810.61

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1.5x scale

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.