Home / 38,870.49-53,640.68-21,873.41

Finding the Fourth Proportional to 38,870.49, 53,640.68 and 21,873.41

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Solution

The fourth proportional to 38,870.49, 53,640.68 and 21,873.41 is: 30,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,870.49 : 53,640.68 = 21,873.41 : x
  2. Step 2: Convert to fraction form
    38,870.49/53,640.68 = 21,873.41/x
  3. Step 3: Cross multiply
    38,870.49x = 53,640.68 × 21,873.41
  4. Step 4: Simplify right side
    38,870.49x = 1,173,304,586.32
  5. Step 5: Solve for x
    x = 1,173,304,586.32/38,870.49
  6. Step 6: Final answer
    x = 30,184.97

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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.