Home / 38,869.96-53,639.90-21,874.19

Finding the Fourth Proportional to 38,869.96, 53,639.90 and 21,874.19

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Solution

The fourth proportional to 38,869.96, 53,639.90 and 21,874.19 is: 30,186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869.96 : 53,639.90 = 21,874.19 : x
  2. Step 2: Convert to fraction form
    38,869.96/53,639.90 = 21,874.19/x
  3. Step 3: Cross multiply
    38,869.96x = 53,639.90 × 21,874.19
  4. Step 4: Simplify right side
    38,869.96x = 1,173,329,007.12
  5. Step 5: Solve for x
    x = 1,173,329,007.12/38,869.96
  6. Step 6: Final answer
    x = 30,186.01

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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.