Home / 38,455.84-57,649.38-20,695.98

Finding the Fourth Proportional to 38,455.84, 57,649.38 and 20,695.98

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Solution

The fourth proportional to 38,455.84, 57,649.38 and 20,695.98 is: 31,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.84 : 57,649.38 = 20,695.98 : x
  2. Step 2: Convert to fraction form
    38,455.84/57,649.38 = 20,695.98/x
  3. Step 3: Cross multiply
    38,455.84x = 57,649.38 × 20,695.98
  4. Step 4: Simplify right side
    38,455.84x = 1,193,110,415.49
  5. Step 5: Solve for x
    x = 1,193,110,415.49/38,455.84
  6. Step 6: Final answer
    x = 31,025.47

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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.