Home / 47,285.76-70,929-13,551.84

Finding the Fourth Proportional to 47,285.76, 70,929 and 13,551.84

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Solution

The fourth proportional to 47,285.76, 70,929 and 13,551.84 is: 20,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,285.76 : 70,929 = 13,551.84 : x
  2. Step 2: Convert to fraction form
    47,285.76/70,929 = 13,551.84/x
  3. Step 3: Cross multiply
    47,285.76x = 70,929 × 13,551.84
  4. Step 4: Simplify right side
    47,285.76x = 961,218,459.36
  5. Step 5: Solve for x
    x = 961,218,459.36/47,285.76
  6. Step 6: Final answer
    x = 20,327.86

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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.