Home / 28,769.84-39,697.08-16,191.92

Finding the Fourth Proportional to 28,769.84, 39,697.08 and 16,191.92

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Solution

The fourth proportional to 28,769.84, 39,697.08 and 16,191.92 is: 22,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.84 : 39,697.08 = 16,191.92 : x
  2. Step 2: Convert to fraction form
    28,769.84/39,697.08 = 16,191.92/x
  3. Step 3: Cross multiply
    28,769.84x = 39,697.08 × 16,191.92
  4. Step 4: Simplify right side
    28,769.84x = 642,771,943.59
  5. Step 5: Solve for x
    x = 642,771,943.59/28,769.84
  6. Step 6: Final answer
    x = 22,341.87

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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.