Home / 47,048.70-70,565.90-13,759.86

Finding the Fourth Proportional to 47,048.70, 70,565.90 and 13,759.86

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Solution

The fourth proportional to 47,048.70, 70,565.90 and 13,759.86 is: 20,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,048.70 : 70,565.90 = 13,759.86 : x
  2. Step 2: Convert to fraction form
    47,048.70/70,565.90 = 13,759.86/x
  3. Step 3: Cross multiply
    47,048.70x = 70,565.90 × 13,759.86
  4. Step 4: Simplify right side
    47,048.70x = 970,976,835.97
  5. Step 5: Solve for x
    x = 970,976,835.97/47,048.70
  6. Step 6: Final answer
    x = 20,637.70

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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.