Home / 28,681.29-39,573.75-16,105.23

Finding the Fourth Proportional to 28,681.29, 39,573.75 and 16,105.23

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Solution

The fourth proportional to 28,681.29, 39,573.75 and 16,105.23 is: 22,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.29 : 39,573.75 = 16,105.23 : x
  2. Step 2: Convert to fraction form
    28,681.29/39,573.75 = 16,105.23/x
  3. Step 3: Cross multiply
    28,681.29x = 39,573.75 × 16,105.23
  4. Step 4: Simplify right side
    28,681.29x = 637,344,345.71
  5. Step 5: Solve for x
    x = 637,344,345.71/28,681.29
  6. Step 6: Final answer
    x = 22,221.61

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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.