Home / 38,718.72-53,430.88-22,589.12

Finding the Fourth Proportional to 38,718.72, 53,430.88 and 22,589.12

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Solution

The fourth proportional to 38,718.72, 53,430.88 and 22,589.12 is: 31,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,718.72 : 53,430.88 = 22,589.12 : x
  2. Step 2: Convert to fraction form
    38,718.72/53,430.88 = 22,589.12/x
  3. Step 3: Cross multiply
    38,718.72x = 53,430.88 × 22,589.12
  4. Step 4: Simplify right side
    38,718.72x = 1,206,956,560.03
  5. Step 5: Solve for x
    x = 1,206,956,560.03/38,718.72
  6. Step 6: Final answer
    x = 31,172.43

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Double scale
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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.