Home / 38,809.56-53,520.84-30,878.04

Finding the Fourth Proportional to 38,809.56, 53,520.84 and 30,878.04

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Solution

The fourth proportional to 38,809.56, 53,520.84 and 30,878.04 is: 42,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809.56 : 53,520.84 = 30,878.04 : x
  2. Step 2: Convert to fraction form
    38,809.56/53,520.84 = 30,878.04/x
  3. Step 3: Cross multiply
    38,809.56x = 53,520.84 × 30,878.04
  4. Step 4: Simplify right side
    38,809.56x = 1,652,618,638.35
  5. Step 5: Solve for x
    x = 1,652,618,638.35/38,809.56
  6. Step 6: Final answer
    x = 42,582.77

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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.