Home / 38,817.78-53,567.37-21,822.18

Finding the Fourth Proportional to 38,817.78, 53,567.37 and 21,822.18

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Solution

The fourth proportional to 38,817.78, 53,567.37 and 21,822.18 is: 30,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,817.78 : 53,567.37 = 21,822.18 : x
  2. Step 2: Convert to fraction form
    38,817.78/53,567.37 = 21,822.18/x
  3. Step 3: Cross multiply
    38,817.78x = 53,567.37 × 21,822.18
  4. Step 4: Simplify right side
    38,817.78x = 1,168,956,790.27
  5. Step 5: Solve for x
    x = 1,168,956,790.27/38,817.78
  6. Step 6: Final answer
    x = 30,113.95

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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.