Home / 28,681.54-39,574.09-16,105.48

Finding the Fourth Proportional to 28,681.54, 39,574.09 and 16,105.48

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Solution

The fourth proportional to 28,681.54, 39,574.09 and 16,105.48 is: 22,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.54 : 39,574.09 = 16,105.48 : x
  2. Step 2: Convert to fraction form
    28,681.54/39,574.09 = 16,105.48/x
  3. Step 3: Cross multiply
    28,681.54x = 39,574.09 × 16,105.48
  4. Step 4: Simplify right side
    28,681.54x = 637,359,715.01
  5. Step 5: Solve for x
    x = 637,359,715.01/28,681.54
  6. Step 6: Final answer
    x = 22,221.95

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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.