Home / 31,830.53-43,926.95-19,085.78

Finding the Fourth Proportional to 31,830.53, 43,926.95 and 19,085.78

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Solution

The fourth proportional to 31,830.53, 43,926.95 and 19,085.78 is: 26,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830.53 : 43,926.95 = 19,085.78 : x
  2. Step 2: Convert to fraction form
    31,830.53/43,926.95 = 19,085.78/x
  3. Step 3: Cross multiply
    31,830.53x = 43,926.95 × 19,085.78
  4. Step 4: Simplify right side
    31,830.53x = 838,380,261.30
  5. Step 5: Solve for x
    x = 838,380,261.30/31,830.53
  6. Step 6: Final answer
    x = 26,338.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.