Home / 31,449.42-47,185.47-15,855.30

Finding the Fourth Proportional to 31,449.42, 47,185.47 and 15,855.30

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Solution

The fourth proportional to 31,449.42, 47,185.47 and 15,855.30 is: 23,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.42 : 47,185.47 = 15,855.30 : x
  2. Step 2: Convert to fraction form
    31,449.42/47,185.47 = 15,855.30/x
  3. Step 3: Cross multiply
    31,449.42x = 47,185.47 × 15,855.30
  4. Step 4: Simplify right side
    31,449.42x = 748,139,782.49
  5. Step 5: Solve for x
    x = 748,139,782.49/31,449.42
  6. Step 6: Final answer
    x = 23,788.67

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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.