Home / 28,836.90-39,784.28-16,895.88

Finding the Fourth Proportional to 28,836.90, 39,784.28 and 16,895.88

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Solution

The fourth proportional to 28,836.90, 39,784.28 and 16,895.88 is: 23,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.90 : 39,784.28 = 16,895.88 : x
  2. Step 2: Convert to fraction form
    28,836.90/39,784.28 = 16,895.88/x
  3. Step 3: Cross multiply
    28,836.90x = 39,784.28 × 16,895.88
  4. Step 4: Simplify right side
    28,836.90x = 672,190,420.77
  5. Step 5: Solve for x
    x = 672,190,420.77/28,836.90
  6. Step 6: Final answer
    x = 23,310.08

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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.