Home / 28,543.36-39,388.76-15,968.10

Finding the Fourth Proportional to 28,543.36, 39,388.76 and 15,968.10

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Solution

The fourth proportional to 28,543.36, 39,388.76 and 15,968.10 is: 22,035.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.36 : 39,388.76 = 15,968.10 : x
  2. Step 2: Convert to fraction form
    28,543.36/39,388.76 = 15,968.10/x
  3. Step 3: Cross multiply
    28,543.36x = 39,388.76 × 15,968.10
  4. Step 4: Simplify right side
    28,543.36x = 628,963,658.56
  5. Step 5: Solve for x
    x = 628,963,658.56/28,543.36
  6. Step 6: Final answer
    x = 22,035.38

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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.