Home / 28,871.84-39,840.29-16,124.00

Finding the Fourth Proportional to 28,871.84, 39,840.29 and 16,124.00

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Solution

The fourth proportional to 28,871.84, 39,840.29 and 16,124.00 is: 22,249.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.84 : 39,840.29 = 16,124.00 : x
  2. Step 2: Convert to fraction form
    28,871.84/39,840.29 = 16,124.00/x
  3. Step 3: Cross multiply
    28,871.84x = 39,840.29 × 16,124.00
  4. Step 4: Simplify right side
    28,871.84x = 642,384,616.60
  5. Step 5: Solve for x
    x = 642,384,616.60/28,871.84
  6. Step 6: Final answer
    x = 22,249.52

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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.