Home / 28,913.40-39,901.34-16,166.23

Finding the Fourth Proportional to 28,913.40, 39,901.34 and 16,166.23

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Solution

The fourth proportional to 28,913.40, 39,901.34 and 16,166.23 is: 22,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.40 : 39,901.34 = 16,166.23 : x
  2. Step 2: Convert to fraction form
    28,913.40/39,901.34 = 16,166.23/x
  3. Step 3: Cross multiply
    28,913.40x = 39,901.34 × 16,166.23
  4. Step 4: Simplify right side
    28,913.40x = 645,054,239.75
  5. Step 5: Solve for x
    x = 645,054,239.75/28,913.40
  6. Step 6: Final answer
    x = 22,309.87

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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.