Home / 28,197.52-38,913.87-16,101.28

Finding the Fourth Proportional to 28,197.52, 38,913.87 and 16,101.28

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Solution

The fourth proportional to 28,197.52, 38,913.87 and 16,101.28 is: 22,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.52 : 38,913.87 = 16,101.28 : x
  2. Step 2: Convert to fraction form
    28,197.52/38,913.87 = 16,101.28/x
  3. Step 3: Cross multiply
    28,197.52x = 38,913.87 × 16,101.28
  4. Step 4: Simplify right side
    28,197.52x = 626,563,116.75
  5. Step 5: Solve for x
    x = 626,563,116.75/28,197.52
  6. Step 6: Final answer
    x = 22,220.50

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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.