Home / 38,912.40-53,698.54-21,916.67

Finding the Fourth Proportional to 38,912.40, 53,698.54 and 21,916.67

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Solution

The fourth proportional to 38,912.40, 53,698.54 and 21,916.67 is: 30,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,912.40 : 53,698.54 = 21,916.67 : x
  2. Step 2: Convert to fraction form
    38,912.40/53,698.54 = 21,916.67/x
  3. Step 3: Cross multiply
    38,912.40x = 53,698.54 × 21,916.67
  4. Step 4: Simplify right side
    38,912.40x = 1,176,893,180.66
  5. Step 5: Solve for x
    x = 1,176,893,180.66/38,912.40
  6. Step 6: Final answer
    x = 30,244.68

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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.