Home / 19,430.21-29,145.25-8,329.70

Finding the Fourth Proportional to 19,430.21, 29,145.25 and 8,329.70

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Solution

The fourth proportional to 19,430.21, 29,145.25 and 8,329.70 is: 12,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.21 : 29,145.25 = 8,329.70 : x
  2. Step 2: Convert to fraction form
    19,430.21/29,145.25 = 8,329.70/x
  3. Step 3: Cross multiply
    19,430.21x = 29,145.25 × 8,329.70
  4. Step 4: Simplify right side
    19,430.21x = 242,771,188.93
  5. Step 5: Solve for x
    x = 242,771,188.93/19,430.21
  6. Step 6: Final answer
    x = 12,494.52

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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.