Home / 36,279.69-54,386.67-12,900.66

Finding the Fourth Proportional to 36,279.69, 54,386.67 and 12,900.66

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Solution

The fourth proportional to 36,279.69, 54,386.67 and 12,900.66 is: 19,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,279.69 : 54,386.67 = 12,900.66 : x
  2. Step 2: Convert to fraction form
    36,279.69/54,386.67 = 12,900.66/x
  3. Step 3: Cross multiply
    36,279.69x = 54,386.67 × 12,900.66
  4. Step 4: Simplify right side
    36,279.69x = 701,623,938.20
  5. Step 5: Solve for x
    x = 701,623,938.20/36,279.69
  6. Step 6: Final answer
    x = 19,339.30

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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.