Home / 38,740.86-58,119.36-12,464.04

Finding the Fourth Proportional to 38,740.86, 58,119.36 and 12,464.04

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Solution

The fourth proportional to 38,740.86, 58,119.36 and 12,464.04 is: 18,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,740.86 : 58,119.36 = 12,464.04 : x
  2. Step 2: Convert to fraction form
    38,740.86/58,119.36 = 12,464.04/x
  3. Step 3: Cross multiply
    38,740.86x = 58,119.36 × 12,464.04
  4. Step 4: Simplify right side
    38,740.86x = 724,402,027.81
  5. Step 5: Solve for x
    x = 724,402,027.81/38,740.86
  6. Step 6: Final answer
    x = 18,698.66

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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.