Home / 20,412.48-30,628.13-9,322.56

Finding the Fourth Proportional to 20,412.48, 30,628.13 and 9,322.56

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Solution

The fourth proportional to 20,412.48, 30,628.13 and 9,322.56 is: 13,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.48 : 30,628.13 = 9,322.56 : x
  2. Step 2: Convert to fraction form
    20,412.48/30,628.13 = 9,322.56/x
  3. Step 3: Cross multiply
    20,412.48x = 30,628.13 × 9,322.56
  4. Step 4: Simplify right side
    20,412.48x = 285,532,533
  5. Step 5: Solve for x
    x = 285,532,533/20,412.48
  6. Step 6: Final answer
    x = 13,988.14

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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.