Home / 36,307.80-54,315.90-31,431.60

Finding the Fourth Proportional to 36,307.80, 54,315.90 and 31,431.60

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Solution

The fourth proportional to 36,307.80, 54,315.90 and 31,431.60 is: 47,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,307.80 : 54,315.90 = 31,431.60 : x
  2. Step 2: Convert to fraction form
    36,307.80/54,315.90 = 31,431.60/x
  3. Step 3: Cross multiply
    36,307.80x = 54,315.90 × 31,431.60
  4. Step 4: Simplify right side
    36,307.80x = 1,707,235,642.44
  5. Step 5: Solve for x
    x = 1,707,235,642.44/36,307.80
  6. Step 6: Final answer
    x = 47,021.18

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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.