Home / 30,981.27-42,590.24-26,658.30

Finding the Fourth Proportional to 30,981.27, 42,590.24 and 26,658.30

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Solution

The fourth proportional to 30,981.27, 42,590.24 and 26,658.30 is: 36,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.27 : 42,590.24 = 26,658.30 : x
  2. Step 2: Convert to fraction form
    30,981.27/42,590.24 = 26,658.30/x
  3. Step 3: Cross multiply
    30,981.27x = 42,590.24 × 26,658.30
  4. Step 4: Simplify right side
    30,981.27x = 1,135,383,048.75
  5. Step 5: Solve for x
    x = 1,135,383,048.75/30,981.27
  6. Step 6: Final answer
    x = 36,647.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.