Home / 30,295.71-45,407.97-13,636.24

Finding the Fourth Proportional to 30,295.71, 45,407.97 and 13,636.24

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Solution

The fourth proportional to 30,295.71, 45,407.97 and 13,636.24 is: 20,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.71 : 45,407.97 = 13,636.24 : x
  2. Step 2: Convert to fraction form
    30,295.71/45,407.97 = 13,636.24/x
  3. Step 3: Cross multiply
    30,295.71x = 45,407.97 × 13,636.24
  4. Step 4: Simplify right side
    30,295.71x = 619,193,976.83
  5. Step 5: Solve for x
    x = 619,193,976.83/30,295.71
  6. Step 6: Final answer
    x = 20,438.34

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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.