Home / 28,347.95-39,119.37-16,411.48

Finding the Fourth Proportional to 28,347.95, 39,119.37 and 16,411.48

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Solution

The fourth proportional to 28,347.95, 39,119.37 and 16,411.48 is: 22,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.95 : 39,119.37 = 16,411.48 : x
  2. Step 2: Convert to fraction form
    28,347.95/39,119.37 = 16,411.48/x
  3. Step 3: Cross multiply
    28,347.95x = 39,119.37 × 16,411.48
  4. Step 4: Simplify right side
    28,347.95x = 642,006,745.72
  5. Step 5: Solve for x
    x = 642,006,745.72/28,347.95
  6. Step 6: Final answer
    x = 22,647.38

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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.