Home / 38,911.76-53,623.32-28,284.56

Finding the Fourth Proportional to 38,911.76, 53,623.32 and 28,284.56

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Solution

The fourth proportional to 38,911.76, 53,623.32 and 28,284.56 is: 38,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,911.76 : 53,623.32 = 28,284.56 : x
  2. Step 2: Convert to fraction form
    38,911.76/53,623.32 = 28,284.56/x
  3. Step 3: Cross multiply
    38,911.76x = 53,623.32 × 28,284.56
  4. Step 4: Simplify right side
    38,911.76x = 1,516,712,011.94
  5. Step 5: Solve for x
    x = 1,516,712,011.94/38,911.76
  6. Step 6: Final answer
    x = 38,978.24

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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.