Home / 31,540.76-43,492.33-31,075.41

Finding the Fourth Proportional to 31,540.76, 43,492.33 and 31,075.41

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Solution

The fourth proportional to 31,540.76, 43,492.33 and 31,075.41 is: 42,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.76 : 43,492.33 = 31,075.41 : x
  2. Step 2: Convert to fraction form
    31,540.76/43,492.33 = 31,075.41/x
  3. Step 3: Cross multiply
    31,540.76x = 43,492.33 × 31,075.41
  4. Step 4: Simplify right side
    31,540.76x = 1,351,541,986.61
  5. Step 5: Solve for x
    x = 1,351,541,986.61/31,540.76
  6. Step 6: Final answer
    x = 42,850.65

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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.