Home / 25,853.77-38,707.62-21,081.64

Finding the Fourth Proportional to 25,853.77, 38,707.62 and 21,081.64

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Solution

The fourth proportional to 25,853.77, 38,707.62 and 21,081.64 is: 31,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,853.77 : 38,707.62 = 21,081.64 : x
  2. Step 2: Convert to fraction form
    25,853.77/38,707.62 = 21,081.64/x
  3. Step 3: Cross multiply
    25,853.77x = 38,707.62 × 21,081.64
  4. Step 4: Simplify right side
    25,853.77x = 816,020,110.10
  5. Step 5: Solve for x
    x = 816,020,110.10/25,853.77
  6. Step 6: Final answer
    x = 31,562.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.