Home / 30,405.12-45,608.96-9,628.16

Finding the Fourth Proportional to 30,405.12, 45,608.96 and 9,628.16

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Solution

The fourth proportional to 30,405.12, 45,608.96 and 9,628.16 is: 14,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.12 : 45,608.96 = 9,628.16 : x
  2. Step 2: Convert to fraction form
    30,405.12/45,608.96 = 9,628.16/x
  3. Step 3: Cross multiply
    30,405.12x = 45,608.96 × 9,628.16
  4. Step 4: Simplify right side
    30,405.12x = 439,130,364.31
  5. Step 5: Solve for x
    x = 439,130,364.31/30,405.12
  6. Step 6: Final answer
    x = 14,442.65

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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.