Home / 26,653.86-39,918.60-21,069.72

Finding the Fourth Proportional to 26,653.86, 39,918.60 and 21,069.72

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Solution

The fourth proportional to 26,653.86, 39,918.60 and 21,069.72 is: 31,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,653.86 : 39,918.60 = 21,069.72 : x
  2. Step 2: Convert to fraction form
    26,653.86/39,918.60 = 21,069.72/x
  3. Step 3: Cross multiply
    26,653.86x = 39,918.60 × 21,069.72
  4. Step 4: Simplify right side
    26,653.86x = 841,073,724.79
  5. Step 5: Solve for x
    x = 841,073,724.79/26,653.86
  6. Step 6: Final answer
    x = 31,555.42

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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.