Home / 38,309.58-57,411.18-21,427.38

Finding the Fourth Proportional to 38,309.58, 57,411.18 and 21,427.38

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Solution

The fourth proportional to 38,309.58, 57,411.18 and 21,427.38 is: 32,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.58 : 57,411.18 = 21,427.38 : x
  2. Step 2: Convert to fraction form
    38,309.58/57,411.18 = 21,427.38/x
  3. Step 3: Cross multiply
    38,309.58x = 57,411.18 × 21,427.38
  4. Step 4: Simplify right side
    38,309.58x = 1,230,171,170.11
  5. Step 5: Solve for x
    x = 1,230,171,170.11/38,309.58
  6. Step 6: Final answer
    x = 32,111.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.