Home / 28,985.04-39,998.34-16,409.52

Finding the Fourth Proportional to 28,985.04, 39,998.34 and 16,409.52

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Solution

The fourth proportional to 28,985.04, 39,998.34 and 16,409.52 is: 22,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.04 : 39,998.34 = 16,409.52 : x
  2. Step 2: Convert to fraction form
    28,985.04/39,998.34 = 16,409.52/x
  3. Step 3: Cross multiply
    28,985.04x = 39,998.34 × 16,409.52
  4. Step 4: Simplify right side
    28,985.04x = 656,353,560.20
  5. Step 5: Solve for x
    x = 656,353,560.20/28,985.04
  6. Step 6: Final answer
    x = 22,644.56

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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.