Home / 30,629.40-42,280.26-29,786.72

Finding the Fourth Proportional to 30,629.40, 42,280.26 and 29,786.72

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Solution

The fourth proportional to 30,629.40, 42,280.26 and 29,786.72 is: 41,117.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.40 : 42,280.26 = 29,786.72 : x
  2. Step 2: Convert to fraction form
    30,629.40/42,280.26 = 29,786.72/x
  3. Step 3: Cross multiply
    30,629.40x = 42,280.26 × 29,786.72
  4. Step 4: Simplify right side
    30,629.40x = 1,259,390,266.15
  5. Step 5: Solve for x
    x = 1,259,390,266.15/30,629.40
  6. Step 6: Final answer
    x = 41,117.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.