Home / 28,822.56-39,777.06-16,247.28

Finding the Fourth Proportional to 28,822.56, 39,777.06 and 16,247.28

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Solution

The fourth proportional to 28,822.56, 39,777.06 and 16,247.28 is: 22,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.56 : 39,777.06 = 16,247.28 : x
  2. Step 2: Convert to fraction form
    28,822.56/39,777.06 = 16,247.28/x
  3. Step 3: Cross multiply
    28,822.56x = 39,777.06 × 16,247.28
  4. Step 4: Simplify right side
    28,822.56x = 646,269,031.40
  5. Step 5: Solve for x
    x = 646,269,031.40/28,822.56
  6. Step 6: Final answer
    x = 22,422.33

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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.