Home / 39,828.95-54,963.96-21,923.88

Finding the Fourth Proportional to 39,828.95, 54,963.96 and 21,923.88

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Solution

The fourth proportional to 39,828.95, 54,963.96 and 21,923.88 is: 30,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.95 : 54,963.96 = 21,923.88 : x
  2. Step 2: Convert to fraction form
    39,828.95/54,963.96 = 21,923.88/x
  3. Step 3: Cross multiply
    39,828.95x = 54,963.96 × 21,923.88
  4. Step 4: Simplify right side
    39,828.95x = 1,205,023,263.36
  5. Step 5: Solve for x
    x = 1,205,023,263.36/39,828.95
  6. Step 6: Final answer
    x = 30,254.96

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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.