Home / 28,396.90-39,184.86-16,463.98

Finding the Fourth Proportional to 28,396.90, 39,184.86 and 16,463.98

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Solution

The fourth proportional to 28,396.90, 39,184.86 and 16,463.98 is: 22,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.90 : 39,184.86 = 16,463.98 : x
  2. Step 2: Convert to fraction form
    28,396.90/39,184.86 = 16,463.98/x
  3. Step 3: Cross multiply
    28,396.90x = 39,184.86 × 16,463.98
  4. Step 4: Simplify right side
    28,396.90x = 645,138,751.34
  5. Step 5: Solve for x
    x = 645,138,751.34/28,396.90
  6. Step 6: Final answer
    x = 22,718.63

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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.