Home / 28,367.95-39,144.37-16,429.63

Finding the Fourth Proportional to 28,367.95, 39,144.37 and 16,429.63

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Solution

The fourth proportional to 28,367.95, 39,144.37 and 16,429.63 is: 22,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.95 : 39,144.37 = 16,429.63 : x
  2. Step 2: Convert to fraction form
    28,367.95/39,144.37 = 16,429.63/x
  3. Step 3: Cross multiply
    28,367.95x = 39,144.37 × 16,429.63
  4. Step 4: Simplify right side
    28,367.95x = 643,127,515.68
  5. Step 5: Solve for x
    x = 643,127,515.68/28,367.95
  6. Step 6: Final answer
    x = 22,670.92

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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.