Home / 28,172.49-38,877.97-16,235.72

Finding the Fourth Proportional to 28,172.49, 38,877.97 and 16,235.72

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Solution

The fourth proportional to 28,172.49, 38,877.97 and 16,235.72 is: 22,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.49 : 38,877.97 = 16,235.72 : x
  2. Step 2: Convert to fraction form
    28,172.49/38,877.97 = 16,235.72/x
  3. Step 3: Cross multiply
    28,172.49x = 38,877.97 × 16,235.72
  4. Step 4: Simplify right side
    28,172.49x = 631,211,835.09
  5. Step 5: Solve for x
    x = 631,211,835.09/28,172.49
  6. Step 6: Final answer
    x = 22,405.26

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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.