Home / 20,435.08-30,655.02-7,289.32

Finding the Fourth Proportional to 20,435.08, 30,655.02 and 7,289.32

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Solution

The fourth proportional to 20,435.08, 30,655.02 and 7,289.32 is: 10,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.08 : 30,655.02 = 7,289.32 : x
  2. Step 2: Convert to fraction form
    20,435.08/30,655.02 = 7,289.32/x
  3. Step 3: Cross multiply
    20,435.08x = 30,655.02 × 7,289.32
  4. Step 4: Simplify right side
    20,435.08x = 223,454,250.39
  5. Step 5: Solve for x
    x = 223,454,250.39/20,435.08
  6. Step 6: Final answer
    x = 10,934.84

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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.