Home / 20,085.92-30,128.73-6,045.89

Finding the Fourth Proportional to 20,085.92, 30,128.73 and 6,045.89

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Solution

The fourth proportional to 20,085.92, 30,128.73 and 6,045.89 is: 9,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.92 : 30,128.73 = 6,045.89 : x
  2. Step 2: Convert to fraction form
    20,085.92/30,128.73 = 6,045.89/x
  3. Step 3: Cross multiply
    20,085.92x = 30,128.73 × 6,045.89
  4. Step 4: Simplify right side
    20,085.92x = 182,154,814.10
  5. Step 5: Solve for x
    x = 182,154,814.10/20,085.92
  6. Step 6: Final answer
    x = 9,068.78

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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.