Home / 39,897.83-59,855.51-11,820.09

Finding the Fourth Proportional to 39,897.83, 59,855.51 and 11,820.09

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Solution

The fourth proportional to 39,897.83, 59,855.51 and 11,820.09 is: 17,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.83 : 59,855.51 = 11,820.09 : x
  2. Step 2: Convert to fraction form
    39,897.83/59,855.51 = 11,820.09/x
  3. Step 3: Cross multiply
    39,897.83x = 59,855.51 × 11,820.09
  4. Step 4: Simplify right side
    39,897.83x = 707,497,515.20
  5. Step 5: Solve for x
    x = 707,497,515.20/39,897.83
  6. Step 6: Final answer
    x = 17,732.73

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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.