Home / 30,721.74-46,023.55-18,840.86

Finding the Fourth Proportional to 30,721.74, 46,023.55 and 18,840.86

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Solution

The fourth proportional to 30,721.74, 46,023.55 and 18,840.86 is: 28,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721.74 : 46,023.55 = 18,840.86 : x
  2. Step 2: Convert to fraction form
    30,721.74/46,023.55 = 18,840.86/x
  3. Step 3: Cross multiply
    30,721.74x = 46,023.55 × 18,840.86
  4. Step 4: Simplify right side
    30,721.74x = 867,123,262.25
  5. Step 5: Solve for x
    x = 867,123,262.25/30,721.74
  6. Step 6: Final answer
    x = 28,225.07

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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.