Home / 31,415.41-43,312.84-25,729.21

Finding the Fourth Proportional to 31,415.41, 43,312.84 and 25,729.21

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Solution

The fourth proportional to 31,415.41, 43,312.84 and 25,729.21 is: 35,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.41 : 43,312.84 = 25,729.21 : x
  2. Step 2: Convert to fraction form
    31,415.41/43,312.84 = 25,729.21/x
  3. Step 3: Cross multiply
    31,415.41x = 43,312.84 × 25,729.21
  4. Step 4: Simplify right side
    31,415.41x = 1,114,405,156.06
  5. Step 5: Solve for x
    x = 1,114,405,156.06/31,415.41
  6. Step 6: Final answer
    x = 35,473.20

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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.