Home / 31,123.46-46,685.16-11,403.55

Finding the Fourth Proportional to 31,123.46, 46,685.16 and 11,403.55

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Solution

The fourth proportional to 31,123.46, 46,685.16 and 11,403.55 is: 17,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,123.46 : 46,685.16 = 11,403.55 : x
  2. Step 2: Convert to fraction form
    31,123.46/46,685.16 = 11,403.55/x
  3. Step 3: Cross multiply
    31,123.46x = 46,685.16 × 11,403.55
  4. Step 4: Simplify right side
    31,123.46x = 532,376,614.67
  5. Step 5: Solve for x
    x = 532,376,614.67/31,123.46
  6. Step 6: Final answer
    x = 17,105.32

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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.