Home / 36,319.69-54,479.53-12,929.72

Finding the Fourth Proportional to 36,319.69, 54,479.53 and 12,929.72

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Solution

The fourth proportional to 36,319.69, 54,479.53 and 12,929.72 is: 19,394.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,319.69 : 54,479.53 = 12,929.72 : x
  2. Step 2: Convert to fraction form
    36,319.69/54,479.53 = 12,929.72/x
  3. Step 3: Cross multiply
    36,319.69x = 54,479.53 × 12,929.72
  4. Step 4: Simplify right side
    36,319.69x = 704,405,068.63
  5. Step 5: Solve for x
    x = 704,405,068.63/36,319.69
  6. Step 6: Final answer
    x = 19,394.58

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Similar ratio
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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.