Home / 39,590.43-59,386.40-12,936.50

Finding the Fourth Proportional to 39,590.43, 59,386.40 and 12,936.50

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Solution

The fourth proportional to 39,590.43, 59,386.40 and 12,936.50 is: 19,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.43 : 59,386.40 = 12,936.50 : x
  2. Step 2: Convert to fraction form
    39,590.43/59,386.40 = 12,936.50/x
  3. Step 3: Cross multiply
    39,590.43x = 59,386.40 × 12,936.50
  4. Step 4: Simplify right side
    39,590.43x = 768,251,801.99
  5. Step 5: Solve for x
    x = 768,251,801.99/39,590.43
  6. Step 6: Final answer
    x = 19,404.99

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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.