Home / 28,818.46-39,769.65-16,072.45

Finding the Fourth Proportional to 28,818.46, 39,769.65 and 16,072.45

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Solution

The fourth proportional to 28,818.46, 39,769.65 and 16,072.45 is: 22,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.46 : 39,769.65 = 16,072.45 : x
  2. Step 2: Convert to fraction form
    28,818.46/39,769.65 = 16,072.45/x
  3. Step 3: Cross multiply
    28,818.46x = 39,769.65 × 16,072.45
  4. Step 4: Simplify right side
    28,818.46x = 639,195,711.14
  5. Step 5: Solve for x
    x = 639,195,711.14/28,818.46
  6. Step 6: Final answer
    x = 22,180.08

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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.