Home / 30,308.63-41,829.73-18,370.45

Finding the Fourth Proportional to 30,308.63, 41,829.73 and 18,370.45

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Solution

The fourth proportional to 30,308.63, 41,829.73 and 18,370.45 is: 25,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.63 : 41,829.73 = 18,370.45 : x
  2. Step 2: Convert to fraction form
    30,308.63/41,829.73 = 18,370.45/x
  3. Step 3: Cross multiply
    30,308.63x = 41,829.73 × 18,370.45
  4. Step 4: Simplify right side
    30,308.63x = 768,430,963.48
  5. Step 5: Solve for x
    x = 768,430,963.48/30,308.63
  6. Step 6: Final answer
    x = 25,353.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.