Home / 20,426.63-30,632.19-7,945.07

Finding the Fourth Proportional to 20,426.63, 30,632.19 and 7,945.07

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Solution

The fourth proportional to 20,426.63, 30,632.19 and 7,945.07 is: 11,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.63 : 30,632.19 = 7,945.07 : x
  2. Step 2: Convert to fraction form
    20,426.63/30,632.19 = 7,945.07/x
  3. Step 3: Cross multiply
    20,426.63x = 30,632.19 × 7,945.07
  4. Step 4: Simplify right side
    20,426.63x = 243,374,740.64
  5. Step 5: Solve for x
    x = 243,374,740.64/20,426.63
  6. Step 6: Final answer
    x = 11,914.58

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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.