Home / 38,896.07-53,672.13-21,899.87

Finding the Fourth Proportional to 38,896.07, 53,672.13 and 21,899.87

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Solution

The fourth proportional to 38,896.07, 53,672.13 and 21,899.87 is: 30,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.07 : 53,672.13 = 21,899.87 : x
  2. Step 2: Convert to fraction form
    38,896.07/53,672.13 = 21,899.87/x
  3. Step 3: Cross multiply
    38,896.07x = 53,672.13 × 21,899.87
  4. Step 4: Simplify right side
    38,896.07x = 1,175,412,602.53
  5. Step 5: Solve for x
    x = 1,175,412,602.53/38,896.07
  6. Step 6: Final answer
    x = 30,219.32

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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.