Home / 38,938.51-53,755.83-31,197.58

Finding the Fourth Proportional to 38,938.51, 53,755.83 and 31,197.58

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Solution

The fourth proportional to 38,938.51, 53,755.83 and 31,197.58 is: 43,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.51 : 53,755.83 = 31,197.58 : x
  2. Step 2: Convert to fraction form
    38,938.51/53,755.83 = 31,197.58/x
  3. Step 3: Cross multiply
    38,938.51x = 53,755.83 × 31,197.58
  4. Step 4: Simplify right side
    38,938.51x = 1,677,051,806.89
  5. Step 5: Solve for x
    x = 1,677,051,806.89/38,938.51
  6. Step 6: Final answer
    x = 43,069.23

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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.