Home / 38,907.94-53,698.08-21,915.52

Finding the Fourth Proportional to 38,907.94, 53,698.08 and 21,915.52

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Solution

The fourth proportional to 38,907.94, 53,698.08 and 21,915.52 is: 30,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.94 : 53,698.08 = 21,915.52 : x
  2. Step 2: Convert to fraction form
    38,907.94/53,698.08 = 21,915.52/x
  3. Step 3: Cross multiply
    38,907.94x = 53,698.08 × 21,915.52
  4. Step 4: Simplify right side
    38,907.94x = 1,176,821,346.20
  5. Step 5: Solve for x
    x = 1,176,821,346.20/38,907.94
  6. Step 6: Final answer
    x = 30,246.30

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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.