Home / 20,402.42-30,603.24-8,391.93

Finding the Fourth Proportional to 20,402.42, 30,603.24 and 8,391.93

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Solution

The fourth proportional to 20,402.42, 30,603.24 and 8,391.93 is: 12,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.42 : 30,603.24 = 8,391.93 : x
  2. Step 2: Convert to fraction form
    20,402.42/30,603.24 = 8,391.93/x
  3. Step 3: Cross multiply
    20,402.42x = 30,603.24 × 8,391.93
  4. Step 4: Simplify right side
    20,402.42x = 256,820,247.85
  5. Step 5: Solve for x
    x = 256,820,247.85/20,402.42
  6. Step 6: Final answer
    x = 12,587.74

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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.