Home / 38,953.80-53,743.34-21,955.95

Finding the Fourth Proportional to 38,953.80, 53,743.34 and 21,955.95

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Solution

The fourth proportional to 38,953.80, 53,743.34 and 21,955.95 is: 30,291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,953.80 : 53,743.34 = 21,955.95 : x
  2. Step 2: Convert to fraction form
    38,953.80/53,743.34 = 21,955.95/x
  3. Step 3: Cross multiply
    38,953.80x = 53,743.34 × 21,955.95
  4. Step 4: Simplify right side
    38,953.80x = 1,179,985,976.09
  5. Step 5: Solve for x
    x = 1,179,985,976.09/38,953.80
  6. Step 6: Final answer
    x = 30,291.93

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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.