Home / 28,371.30-39,140.63-16,883.91

Finding the Fourth Proportional to 28,371.30, 39,140.63 and 16,883.91

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Solution

The fourth proportional to 28,371.30, 39,140.63 and 16,883.91 is: 23,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.30 : 39,140.63 = 16,883.91 : x
  2. Step 2: Convert to fraction form
    28,371.30/39,140.63 = 16,883.91/x
  3. Step 3: Cross multiply
    28,371.30x = 39,140.63 × 16,883.91
  4. Step 4: Simplify right side
    28,371.30x = 660,846,853.16
  5. Step 5: Solve for x
    x = 660,846,853.16/28,371.30
  6. Step 6: Final answer
    x = 23,292.80

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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.