Home / 30,650.91-42,272.85-25,881.90

Finding the Fourth Proportional to 30,650.91, 42,272.85 and 25,881.90

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Solution

The fourth proportional to 30,650.91, 42,272.85 and 25,881.90 is: 35,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.91 : 42,272.85 = 25,881.90 : x
  2. Step 2: Convert to fraction form
    30,650.91/42,272.85 = 25,881.90/x
  3. Step 3: Cross multiply
    30,650.91x = 42,272.85 × 25,881.90
  4. Step 4: Simplify right side
    30,650.91x = 1,094,101,676.42
  5. Step 5: Solve for x
    x = 1,094,101,676.42/30,650.91
  6. Step 6: Final answer
    x = 35,695.57

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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.