Home / 27,953.64-38,564.28-18,505.80

Finding the Fourth Proportional to 27,953.64, 38,564.28 and 18,505.80

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Solution

The fourth proportional to 27,953.64, 38,564.28 and 18,505.80 is: 25,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.64 : 38,564.28 = 18,505.80 : x
  2. Step 2: Convert to fraction form
    27,953.64/38,564.28 = 18,505.80/x
  3. Step 3: Cross multiply
    27,953.64x = 38,564.28 × 18,505.80
  4. Step 4: Simplify right side
    27,953.64x = 713,662,852.82
  5. Step 5: Solve for x
    x = 713,662,852.82/27,953.64
  6. Step 6: Final answer
    x = 25,530.23

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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.