Home / 39,280.84-58,930.48-12,985.58

Finding the Fourth Proportional to 39,280.84, 58,930.48 and 12,985.58

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Solution

The fourth proportional to 39,280.84, 58,930.48 and 12,985.58 is: 19,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.84 : 58,930.48 = 12,985.58 : x
  2. Step 2: Convert to fraction form
    39,280.84/58,930.48 = 12,985.58/x
  3. Step 3: Cross multiply
    39,280.84x = 58,930.48 × 12,985.58
  4. Step 4: Simplify right side
    39,280.84x = 765,246,462.48
  5. Step 5: Solve for x
    x = 765,246,462.48/39,280.84
  6. Step 6: Final answer
    x = 19,481.42

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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.