Home / 30,212.42-45,323.48-12,687.26

Finding the Fourth Proportional to 30,212.42, 45,323.48 and 12,687.26

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Solution

The fourth proportional to 30,212.42, 45,323.48 and 12,687.26 is: 19,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.42 : 45,323.48 = 12,687.26 : x
  2. Step 2: Convert to fraction form
    30,212.42/45,323.48 = 12,687.26/x
  3. Step 3: Cross multiply
    30,212.42x = 45,323.48 × 12,687.26
  4. Step 4: Simplify right side
    30,212.42x = 575,030,579.97
  5. Step 5: Solve for x
    x = 575,030,579.97/30,212.42
  6. Step 6: Final answer
    x = 19,032.92

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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.