Home / 28,105.47-38,782.67-16,166.48

Finding the Fourth Proportional to 28,105.47, 38,782.67 and 16,166.48

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Solution

The fourth proportional to 28,105.47, 38,782.67 and 16,166.48 is: 22,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.47 : 38,782.67 = 16,166.48 : x
  2. Step 2: Convert to fraction form
    28,105.47/38,782.67 = 16,166.48/x
  3. Step 3: Cross multiply
    28,105.47x = 38,782.67 × 16,166.48
  4. Step 4: Simplify right side
    28,105.47x = 626,978,984.16
  5. Step 5: Solve for x
    x = 626,978,984.16/28,105.47
  6. Step 6: Final answer
    x = 22,308.08

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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.