Home / 38,938.70-53,702.30-32,918.30

Finding the Fourth Proportional to 38,938.70, 53,702.30 and 32,918.30

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Solution

The fourth proportional to 38,938.70, 53,702.30 and 32,918.30 is: 45,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.70 : 53,702.30 = 32,918.30 : x
  2. Step 2: Convert to fraction form
    38,938.70/53,702.30 = 32,918.30/x
  3. Step 3: Cross multiply
    38,938.70x = 53,702.30 × 32,918.30
  4. Step 4: Simplify right side
    38,938.70x = 1,767,788,422.09
  5. Step 5: Solve for x
    x = 1,767,788,422.09/38,938.70
  6. Step 6: Final answer
    x = 45,399.27

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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.