Home / 38,581.83-53,245.00-21,585.06

Finding the Fourth Proportional to 38,581.83, 53,245.00 and 21,585.06

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Solution

The fourth proportional to 38,581.83, 53,245.00 and 21,585.06 is: 29,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.83 : 53,245.00 = 21,585.06 : x
  2. Step 2: Convert to fraction form
    38,581.83/53,245.00 = 21,585.06/x
  3. Step 3: Cross multiply
    38,581.83x = 53,245.00 × 21,585.06
  4. Step 4: Simplify right side
    38,581.83x = 1,149,296,275.51
  5. Step 5: Solve for x
    x = 1,149,296,275.51/38,581.83
  6. Step 6: Final answer
    x = 29,788.54

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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.