Home / 28,405.49-39,199.77-16,302.78

Finding the Fourth Proportional to 28,405.49, 39,199.77 and 16,302.78

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Solution

The fourth proportional to 28,405.49, 39,199.77 and 16,302.78 is: 22,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.49 : 39,199.77 = 16,302.78 : x
  2. Step 2: Convert to fraction form
    28,405.49/39,199.77 = 16,302.78/x
  3. Step 3: Cross multiply
    28,405.49x = 39,199.77 × 16,302.78
  4. Step 4: Simplify right side
    28,405.49x = 639,065,226.36
  5. Step 5: Solve for x
    x = 639,065,226.36/28,405.49
  6. Step 6: Final answer
    x = 22,497.95

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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.