Home / 20,466.19-28,242.73-12,404.61

Finding the Fourth Proportional to 20,466.19, 28,242.73 and 12,404.61

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Solution

The fourth proportional to 20,466.19, 28,242.73 and 12,404.61 is: 17,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.19 : 28,242.73 = 12,404.61 : x
  2. Step 2: Convert to fraction form
    20,466.19/28,242.73 = 12,404.61/x
  3. Step 3: Cross multiply
    20,466.19x = 28,242.73 × 12,404.61
  4. Step 4: Simplify right side
    20,466.19x = 350,339,988.96
  5. Step 5: Solve for x
    x = 350,339,988.96/20,466.19
  6. Step 6: Final answer
    x = 17,117.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.