Home / 28,539.86-39,392.92-16,605.50

Finding the Fourth Proportional to 28,539.86, 39,392.92 and 16,605.50

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Solution

The fourth proportional to 28,539.86, 39,392.92 and 16,605.50 is: 22,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.86 : 39,392.92 = 16,605.50 : x
  2. Step 2: Convert to fraction form
    28,539.86/39,392.92 = 16,605.50/x
  3. Step 3: Cross multiply
    28,539.86x = 39,392.92 × 16,605.50
  4. Step 4: Simplify right side
    28,539.86x = 654,139,273.06
  5. Step 5: Solve for x
    x = 654,139,273.06/28,539.86
  6. Step 6: Final answer
    x = 22,920.20

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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.