Home / 28,921.49-39,911.37-16,174.52

Finding the Fourth Proportional to 28,921.49, 39,911.37 and 16,174.52

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Solution

The fourth proportional to 28,921.49, 39,911.37 and 16,174.52 is: 22,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.49 : 39,911.37 = 16,174.52 : x
  2. Step 2: Convert to fraction form
    28,921.49/39,911.37 = 16,174.52/x
  3. Step 3: Cross multiply
    28,921.49x = 39,911.37 × 16,174.52
  4. Step 4: Simplify right side
    28,921.49x = 645,547,252.29
  5. Step 5: Solve for x
    x = 645,547,252.29/28,921.49
  6. Step 6: Final answer
    x = 22,320.68

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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.