Home / 38,579.04-53,238.60-21,810.96

Finding the Fourth Proportional to 38,579.04, 53,238.60 and 21,810.96

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Solution

The fourth proportional to 38,579.04, 53,238.60 and 21,810.96 is: 30,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,579.04 : 53,238.60 = 21,810.96 : x
  2. Step 2: Convert to fraction form
    38,579.04/53,238.60 = 21,810.96/x
  3. Step 3: Cross multiply
    38,579.04x = 53,238.60 × 21,810.96
  4. Step 4: Simplify right side
    38,579.04x = 1,161,184,975.06
  5. Step 5: Solve for x
    x = 1,161,184,975.06/38,579.04
  6. Step 6: Final answer
    x = 30,098.86

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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.