Home / 28,665.18-39,555.78-16,087.50

Finding the Fourth Proportional to 28,665.18, 39,555.78 and 16,087.50

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Solution

The fourth proportional to 28,665.18, 39,555.78 and 16,087.50 is: 22,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.18 : 39,555.78 = 16,087.50 : x
  2. Step 2: Convert to fraction form
    28,665.18/39,555.78 = 16,087.50/x
  3. Step 3: Cross multiply
    28,665.18x = 39,555.78 × 16,087.50
  4. Step 4: Simplify right side
    28,665.18x = 636,353,610.75
  5. Step 5: Solve for x
    x = 636,353,610.75/28,665.18
  6. Step 6: Final answer
    x = 22,199.53

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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.