Home / 20,009.95-30,034.36-9,628.99

Finding the Fourth Proportional to 20,009.95, 30,034.36 and 9,628.99

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Solution

The fourth proportional to 20,009.95, 30,034.36 and 9,628.99 is: 14,452.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.95 : 30,034.36 = 9,628.99 : x
  2. Step 2: Convert to fraction form
    20,009.95/30,034.36 = 9,628.99/x
  3. Step 3: Cross multiply
    20,009.95x = 30,034.36 × 9,628.99
  4. Step 4: Simplify right side
    20,009.95x = 289,200,552.10
  5. Step 5: Solve for x
    x = 289,200,552.10/20,009.95
  6. Step 6: Final answer
    x = 14,452.84

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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.