Home / 31,220.57-46,830.60-13,463.79

Finding the Fourth Proportional to 31,220.57, 46,830.60 and 13,463.79

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Solution

The fourth proportional to 31,220.57, 46,830.60 and 13,463.79 is: 20,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,220.57 : 46,830.60 = 13,463.79 : x
  2. Step 2: Convert to fraction form
    31,220.57/46,830.60 = 13,463.79/x
  3. Step 3: Cross multiply
    31,220.57x = 46,830.60 × 13,463.79
  4. Step 4: Simplify right side
    31,220.57x = 630,517,129.82
  5. Step 5: Solve for x
    x = 630,517,129.82/31,220.57
  6. Step 6: Final answer
    x = 20,195.57

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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.