Home / 28,071.72-38,738-16,735.37

Finding the Fourth Proportional to 28,071.72, 38,738 and 16,735.37

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Solution

The fourth proportional to 28,071.72, 38,738 and 16,735.37 is: 23,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.72 : 38,738 = 16,735.37 : x
  2. Step 2: Convert to fraction form
    28,071.72/38,738 = 16,735.37/x
  3. Step 3: Cross multiply
    28,071.72x = 38,738 × 16,735.37
  4. Step 4: Simplify right side
    28,071.72x = 648,294,763.06
  5. Step 5: Solve for x
    x = 648,294,763.06/28,071.72
  6. Step 6: Final answer
    x = 23,094.23

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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.