Home / 38,903.69-53,686.40-21,907.97

Finding the Fourth Proportional to 38,903.69, 53,686.40 and 21,907.97

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Solution

The fourth proportional to 38,903.69, 53,686.40 and 21,907.97 is: 30,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903.69 : 53,686.40 = 21,907.97 : x
  2. Step 2: Convert to fraction form
    38,903.69/53,686.40 = 21,907.97/x
  3. Step 3: Cross multiply
    38,903.69x = 53,686.40 × 21,907.97
  4. Step 4: Simplify right side
    38,903.69x = 1,176,159,863.96
  5. Step 5: Solve for x
    x = 1,176,159,863.96/38,903.69
  6. Step 6: Final answer
    x = 30,232.60

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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.