Home / 38,773.86-58,160.81-12,478.60

Finding the Fourth Proportional to 38,773.86, 58,160.81 and 12,478.60

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Solution

The fourth proportional to 38,773.86, 58,160.81 and 12,478.60 is: 18,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,773.86 : 58,160.81 = 12,478.60 : x
  2. Step 2: Convert to fraction form
    38,773.86/58,160.81 = 12,478.60/x
  3. Step 3: Cross multiply
    38,773.86x = 58,160.81 × 12,478.60
  4. Step 4: Simplify right side
    38,773.86x = 725,765,483.67
  5. Step 5: Solve for x
    x = 725,765,483.67/38,773.86
  6. Step 6: Final answer
    x = 18,717.91

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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.