Home / 28,347.57-39,118.85-16,411.11

Finding the Fourth Proportional to 28,347.57, 39,118.85 and 16,411.11

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Solution

The fourth proportional to 28,347.57, 39,118.85 and 16,411.11 is: 22,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.57 : 39,118.85 = 16,411.11 : x
  2. Step 2: Convert to fraction form
    28,347.57/39,118.85 = 16,411.11/x
  3. Step 3: Cross multiply
    28,347.57x = 39,118.85 × 16,411.11
  4. Step 4: Simplify right side
    28,347.57x = 641,983,583.21
  5. Step 5: Solve for x
    x = 641,983,583.21/28,347.57
  6. Step 6: Final answer
    x = 22,646.86

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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.