Home / 38,419.16-53,016.80-28,343.97

Finding the Fourth Proportional to 38,419.16, 53,016.80 and 28,343.97

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Solution

The fourth proportional to 38,419.16, 53,016.80 and 28,343.97 is: 39,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.16 : 53,016.80 = 28,343.97 : x
  2. Step 2: Convert to fraction form
    38,419.16/53,016.80 = 28,343.97/x
  3. Step 3: Cross multiply
    38,419.16x = 53,016.80 × 28,343.97
  4. Step 4: Simplify right side
    38,419.16x = 1,502,706,446.98
  5. Step 5: Solve for x
    x = 1,502,706,446.98/38,419.16
  6. Step 6: Final answer
    x = 39,113.47

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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.