Home / 27,981.47-38,613.54-16,648.37

Finding the Fourth Proportional to 27,981.47, 38,613.54 and 16,648.37

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Solution

The fourth proportional to 27,981.47, 38,613.54 and 16,648.37 is: 22,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.47 : 38,613.54 = 16,648.37 : x
  2. Step 2: Convert to fraction form
    27,981.47/38,613.54 = 16,648.37/x
  3. Step 3: Cross multiply
    27,981.47x = 38,613.54 × 16,648.37
  4. Step 4: Simplify right side
    27,981.47x = 642,852,293.17
  5. Step 5: Solve for x
    x = 642,852,293.17/27,981.47
  6. Step 6: Final answer
    x = 22,974.22

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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.