Home / 20,395.02-30,580.21-9,148.30

Finding the Fourth Proportional to 20,395.02, 30,580.21 and 9,148.30

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Solution

The fourth proportional to 20,395.02, 30,580.21 and 9,148.30 is: 13,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.02 : 30,580.21 = 9,148.30 : x
  2. Step 2: Convert to fraction form
    20,395.02/30,580.21 = 9,148.30/x
  3. Step 3: Cross multiply
    20,395.02x = 30,580.21 × 9,148.30
  4. Step 4: Simplify right side
    20,395.02x = 279,756,935.14
  5. Step 5: Solve for x
    x = 279,756,935.14/20,395.02
  6. Step 6: Final answer
    x = 13,716.92

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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.