Home / 29,639.38-40,883.64-20,683.61

Finding the Fourth Proportional to 29,639.38, 40,883.64 and 20,683.61

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Solution

The fourth proportional to 29,639.38, 40,883.64 and 20,683.61 is: 28,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.38 : 40,883.64 = 20,683.61 : x
  2. Step 2: Convert to fraction form
    29,639.38/40,883.64 = 20,683.61/x
  3. Step 3: Cross multiply
    29,639.38x = 40,883.64 × 20,683.61
  4. Step 4: Simplify right side
    29,639.38x = 845,621,482.79
  5. Step 5: Solve for x
    x = 845,621,482.79/29,639.38
  6. Step 6: Final answer
    x = 28,530.34

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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.