Home / 39,280.59-58,930.10-12,985.33

Finding the Fourth Proportional to 39,280.59, 58,930.10 and 12,985.33

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Solution

The fourth proportional to 39,280.59, 58,930.10 and 12,985.33 is: 19,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.59 : 58,930.10 = 12,985.33 : x
  2. Step 2: Convert to fraction form
    39,280.59/58,930.10 = 12,985.33/x
  3. Step 3: Cross multiply
    39,280.59x = 58,930.10 × 12,985.33
  4. Step 4: Simplify right side
    39,280.59x = 765,226,795.43
  5. Step 5: Solve for x
    x = 765,226,795.43/39,280.59
  6. Step 6: Final answer
    x = 19,481.04

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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.