Home / 28,953.28-39,955.08-16,206.80

Finding the Fourth Proportional to 28,953.28, 39,955.08 and 16,206.80

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Solution

The fourth proportional to 28,953.28, 39,955.08 and 16,206.80 is: 22,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.28 : 39,955.08 = 16,206.80 : x
  2. Step 2: Convert to fraction form
    28,953.28/39,955.08 = 16,206.80/x
  3. Step 3: Cross multiply
    28,953.28x = 39,955.08 × 16,206.80
  4. Step 4: Simplify right side
    28,953.28x = 647,543,990.54
  5. Step 5: Solve for x
    x = 647,543,990.54/28,953.28
  6. Step 6: Final answer
    x = 22,365.13

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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.