Home / 30,272.22-45,407.83-13,620.48

Finding the Fourth Proportional to 30,272.22, 45,407.83 and 13,620.48

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Solution

The fourth proportional to 30,272.22, 45,407.83 and 13,620.48 is: 20,430.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272.22 : 45,407.83 = 13,620.48 : x
  2. Step 2: Convert to fraction form
    30,272.22/45,407.83 = 13,620.48/x
  3. Step 3: Cross multiply
    30,272.22x = 45,407.83 × 13,620.48
  4. Step 4: Simplify right side
    30,272.22x = 618,476,440.36
  5. Step 5: Solve for x
    x = 618,476,440.36/30,272.22
  6. Step 6: Final answer
    x = 20,430.50

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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.