Home / 38,683.78-58,026.49-12,388.45

Finding the Fourth Proportional to 38,683.78, 58,026.49 and 12,388.45

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Solution

The fourth proportional to 38,683.78, 58,026.49 and 12,388.45 is: 18,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,683.78 : 58,026.49 = 12,388.45 : x
  2. Step 2: Convert to fraction form
    38,683.78/58,026.49 = 12,388.45/x
  3. Step 3: Cross multiply
    38,683.78x = 58,026.49 × 12,388.45
  4. Step 4: Simplify right side
    38,683.78x = 718,858,270.04
  5. Step 5: Solve for x
    x = 718,858,270.04/38,683.78
  6. Step 6: Final answer
    x = 18,582.94

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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.