Home / 39,088.72-53,942.21-21,183.72

Finding the Fourth Proportional to 39,088.72, 53,942.21 and 21,183.72

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Solution

The fourth proportional to 39,088.72, 53,942.21 and 21,183.72 is: 29,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,088.72 : 53,942.21 = 21,183.72 : x
  2. Step 2: Convert to fraction form
    39,088.72/53,942.21 = 21,183.72/x
  3. Step 3: Cross multiply
    39,088.72x = 53,942.21 × 21,183.72
  4. Step 4: Simplify right side
    39,088.72x = 1,142,696,297.19
  5. Step 5: Solve for x
    x = 1,142,696,297.19/39,088.72
  6. Step 6: Final answer
    x = 29,233.40

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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.