Home / 19,543.71-29,249.69-12,122.67

Finding the Fourth Proportional to 19,543.71, 29,249.69 and 12,122.67

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Solution

The fourth proportional to 19,543.71, 29,249.69 and 12,122.67 is: 18,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.71 : 29,249.69 = 12,122.67 : x
  2. Step 2: Convert to fraction form
    19,543.71/29,249.69 = 12,122.67/x
  3. Step 3: Cross multiply
    19,543.71x = 29,249.69 × 12,122.67
  4. Step 4: Simplify right side
    19,543.71x = 354,584,278.86
  5. Step 5: Solve for x
    x = 354,584,278.86/19,543.71
  6. Step 6: Final answer
    x = 18,143.14

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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.