Home / 28,443.90-39,254.45-20,893.49

Finding the Fourth Proportional to 28,443.90, 39,254.45 and 20,893.49

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Solution

The fourth proportional to 28,443.90, 39,254.45 and 20,893.49 is: 28,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.90 : 39,254.45 = 20,893.49 : x
  2. Step 2: Convert to fraction form
    28,443.90/39,254.45 = 20,893.49/x
  3. Step 3: Cross multiply
    28,443.90x = 39,254.45 × 20,893.49
  4. Step 4: Simplify right side
    28,443.90x = 820,162,157.79
  5. Step 5: Solve for x
    x = 820,162,157.79/28,443.90
  6. Step 6: Final answer
    x = 28,834.38

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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.