Home / 47,128.74-70,705.02-13,849.86

Finding the Fourth Proportional to 47,128.74, 70,705.02 and 13,849.86

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Solution

The fourth proportional to 47,128.74, 70,705.02 and 13,849.86 is: 20,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.74 : 70,705.02 = 13,849.86 : x
  2. Step 2: Convert to fraction form
    47,128.74/70,705.02 = 13,849.86/x
  3. Step 3: Cross multiply
    47,128.74x = 70,705.02 × 13,849.86
  4. Step 4: Simplify right side
    47,128.74x = 979,254,628.30
  5. Step 5: Solve for x
    x = 979,254,628.30/47,128.74
  6. Step 6: Final answer
    x = 20,778.29

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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.