Home / 31,109.70-46,664.55-13,613.70

Finding the Fourth Proportional to 31,109.70, 46,664.55 and 13,613.70

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Solution

The fourth proportional to 31,109.70, 46,664.55 and 13,613.70 is: 20,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.70 : 46,664.55 = 13,613.70 : x
  2. Step 2: Convert to fraction form
    31,109.70/46,664.55 = 13,613.70/x
  3. Step 3: Cross multiply
    31,109.70x = 46,664.55 × 13,613.70
  4. Step 4: Simplify right side
    31,109.70x = 635,277,184.34
  5. Step 5: Solve for x
    x = 635,277,184.34/31,109.70
  6. Step 6: Final answer
    x = 20,420.55

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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.