Home / 30,424.31-45,636.26-8,237.60

Finding the Fourth Proportional to 30,424.31, 45,636.26 and 8,237.60

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Solution

The fourth proportional to 30,424.31, 45,636.26 and 8,237.60 is: 12,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,424.31 : 45,636.26 = 8,237.60 : x
  2. Step 2: Convert to fraction form
    30,424.31/45,636.26 = 8,237.60/x
  3. Step 3: Cross multiply
    30,424.31x = 45,636.26 × 8,237.60
  4. Step 4: Simplify right side
    30,424.31x = 375,932,986.01
  5. Step 5: Solve for x
    x = 375,932,986.01/30,424.31
  6. Step 6: Final answer
    x = 12,356.34

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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.