Home / 30,406.57-45,608.85-13,766.60

Finding the Fourth Proportional to 30,406.57, 45,608.85 and 13,766.60

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Solution

The fourth proportional to 30,406.57, 45,608.85 and 13,766.60 is: 20,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.57 : 45,608.85 = 13,766.60 : x
  2. Step 2: Convert to fraction form
    30,406.57/45,608.85 = 13,766.60/x
  3. Step 3: Cross multiply
    30,406.57x = 45,608.85 × 13,766.60
  4. Step 4: Simplify right side
    30,406.57x = 627,878,794.41
  5. Step 5: Solve for x
    x = 627,878,794.41/30,406.57
  6. Step 6: Final answer
    x = 20,649.45

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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.