Home / 30,407.12-45,610.68-9,629

Finding the Fourth Proportional to 30,407.12, 45,610.68 and 9,629

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Solution

The fourth proportional to 30,407.12, 45,610.68 and 9,629 is: 14,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.12 : 45,610.68 = 9,629 : x
  2. Step 2: Convert to fraction form
    30,407.12/45,610.68 = 9,629/x
  3. Step 3: Cross multiply
    30,407.12x = 45,610.68 × 9,629
  4. Step 4: Simplify right side
    30,407.12x = 439,185,237.72
  5. Step 5: Solve for x
    x = 439,185,237.72/30,407.12
  6. Step 6: Final answer
    x = 14,443.50

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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.