Home / 26,181.80-39,271.74-11,390.72

Finding the Fourth Proportional to 26,181.80, 39,271.74 and 11,390.72

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Solution

The fourth proportional to 26,181.80, 39,271.74 and 11,390.72 is: 17,085.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,181.80 : 39,271.74 = 11,390.72 : x
  2. Step 2: Convert to fraction form
    26,181.80/39,271.74 = 11,390.72/x
  3. Step 3: Cross multiply
    26,181.80x = 39,271.74 × 11,390.72
  4. Step 4: Simplify right side
    26,181.80x = 447,333,394.25
  5. Step 5: Solve for x
    x = 447,333,394.25/26,181.80
  6. Step 6: Final answer
    x = 17,085.66

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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.