Home / 26,653.80-39,955.10-20,727.40

Finding the Fourth Proportional to 26,653.80, 39,955.10 and 20,727.40

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Solution

The fourth proportional to 26,653.80, 39,955.10 and 20,727.40 is: 31,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,653.80 : 39,955.10 = 20,727.40 : x
  2. Step 2: Convert to fraction form
    26,653.80/39,955.10 = 20,727.40/x
  3. Step 3: Cross multiply
    26,653.80x = 39,955.10 × 20,727.40
  4. Step 4: Simplify right side
    26,653.80x = 828,165,339.74
  5. Step 5: Solve for x
    x = 828,165,339.74/26,653.80
  6. Step 6: Final answer
    x = 31,071.19

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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.