Home / 30,677.01-42,335.46-18,745.71

Finding the Fourth Proportional to 30,677.01, 42,335.46 and 18,745.71

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Solution

The fourth proportional to 30,677.01, 42,335.46 and 18,745.71 is: 25,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,677.01 : 42,335.46 = 18,745.71 : x
  2. Step 2: Convert to fraction form
    30,677.01/42,335.46 = 18,745.71/x
  3. Step 3: Cross multiply
    30,677.01x = 42,335.46 × 18,745.71
  4. Step 4: Simplify right side
    30,677.01x = 793,608,255.88
  5. Step 5: Solve for x
    x = 793,608,255.88/30,677.01
  6. Step 6: Final answer
    x = 25,869.80

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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.