Home / 28,611.66-39,488.88-16,681.98

Finding the Fourth Proportional to 28,611.66, 39,488.88 and 16,681.98

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Solution

The fourth proportional to 28,611.66, 39,488.88 and 16,681.98 is: 23,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.66 : 39,488.88 = 16,681.98 : x
  2. Step 2: Convert to fraction form
    28,611.66/39,488.88 = 16,681.98/x
  3. Step 3: Cross multiply
    28,611.66x = 39,488.88 × 16,681.98
  4. Step 4: Simplify right side
    28,611.66x = 658,752,706.38
  5. Step 5: Solve for x
    x = 658,752,706.38/28,611.66
  6. Step 6: Final answer
    x = 23,023.92

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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.