Home / 31,684.16-43,728.05-18,075.56

Finding the Fourth Proportional to 31,684.16, 43,728.05 and 18,075.56

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Solution

The fourth proportional to 31,684.16, 43,728.05 and 18,075.56 is: 24,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.16 : 43,728.05 = 18,075.56 : x
  2. Step 2: Convert to fraction form
    31,684.16/43,728.05 = 18,075.56/x
  3. Step 3: Cross multiply
    31,684.16x = 43,728.05 × 18,075.56
  4. Step 4: Simplify right side
    31,684.16x = 790,408,818.01
  5. Step 5: Solve for x
    x = 790,408,818.01/31,684.16
  6. Step 6: Final answer
    x = 24,946.50

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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.