Home / 28,773.28-39,710.16-16,840.48

Finding the Fourth Proportional to 28,773.28, 39,710.16 and 16,840.48

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Solution

The fourth proportional to 28,773.28, 39,710.16 and 16,840.48 is: 23,241.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773.28 : 39,710.16 = 16,840.48 : x
  2. Step 2: Convert to fraction form
    28,773.28/39,710.16 = 16,840.48/x
  3. Step 3: Cross multiply
    28,773.28x = 39,710.16 × 16,840.48
  4. Step 4: Simplify right side
    28,773.28x = 668,738,155.28
  5. Step 5: Solve for x
    x = 668,738,155.28/28,773.28
  6. Step 6: Final answer
    x = 23,241.64

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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.