Home / 28,989.02-39,995.78-16,240.49

Finding the Fourth Proportional to 28,989.02, 39,995.78 and 16,240.49

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Solution

The fourth proportional to 28,989.02, 39,995.78 and 16,240.49 is: 22,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.02 : 39,995.78 = 16,240.49 : x
  2. Step 2: Convert to fraction form
    28,989.02/39,995.78 = 16,240.49/x
  3. Step 3: Cross multiply
    28,989.02x = 39,995.78 × 16,240.49
  4. Step 4: Simplify right side
    28,989.02x = 649,550,783.95
  5. Step 5: Solve for x
    x = 649,550,783.95/28,989.02
  6. Step 6: Final answer
    x = 22,406.79

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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.