Home / 34,421.12-51,621.34-12,231.58

Finding the Fourth Proportional to 34,421.12, 51,621.34 and 12,231.58

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Solution

The fourth proportional to 34,421.12, 51,621.34 and 12,231.58 is: 18,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,421.12 : 51,621.34 = 12,231.58 : x
  2. Step 2: Convert to fraction form
    34,421.12/51,621.34 = 12,231.58/x
  3. Step 3: Cross multiply
    34,421.12x = 51,621.34 × 12,231.58
  4. Step 4: Simplify right side
    34,421.12x = 631,410,549.92
  5. Step 5: Solve for x
    x = 631,410,549.92/34,421.12
  6. Step 6: Final answer
    x = 18,343.70

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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.