Home / 29,878.76-41,266.80-20,302.64

Finding the Fourth Proportional to 29,878.76, 41,266.80 and 20,302.64

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Solution

The fourth proportional to 29,878.76, 41,266.80 and 20,302.64 is: 28,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,878.76 : 41,266.80 = 20,302.64 : x
  2. Step 2: Convert to fraction form
    29,878.76/41,266.80 = 20,302.64/x
  3. Step 3: Cross multiply
    29,878.76x = 41,266.80 × 20,302.64
  4. Step 4: Simplify right side
    29,878.76x = 837,825,087.52
  5. Step 5: Solve for x
    x = 837,825,087.52/29,878.76
  6. Step 6: Final answer
    x = 28,040.83

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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.