Home / 30,357.09-45,524.69-12,828.28

Finding the Fourth Proportional to 30,357.09, 45,524.69 and 12,828.28

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Solution

The fourth proportional to 30,357.09, 45,524.69 and 12,828.28 is: 19,237.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,357.09 : 45,524.69 = 12,828.28 : x
  2. Step 2: Convert to fraction form
    30,357.09/45,524.69 = 12,828.28/x
  3. Step 3: Cross multiply
    30,357.09x = 45,524.69 × 12,828.28
  4. Step 4: Simplify right side
    30,357.09x = 584,003,470.23
  5. Step 5: Solve for x
    x = 584,003,470.23/30,357.09
  6. Step 6: Final answer
    x = 19,237.79

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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.