Home / 28,960.02-39,968.60-16,218.06

Finding the Fourth Proportional to 28,960.02, 39,968.60 and 16,218.06

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Solution

The fourth proportional to 28,960.02, 39,968.60 and 16,218.06 is: 22,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.02 : 39,968.60 = 16,218.06 : x
  2. Step 2: Convert to fraction form
    28,960.02/39,968.60 = 16,218.06/x
  3. Step 3: Cross multiply
    28,960.02x = 39,968.60 × 16,218.06
  4. Step 4: Simplify right side
    28,960.02x = 648,213,152.92
  5. Step 5: Solve for x
    x = 648,213,152.92/28,960.02
  6. Step 6: Final answer
    x = 22,383.04

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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.