Home / 21,415.13-32,116.55-7,374.59

Finding the Fourth Proportional to 21,415.13, 32,116.55 and 7,374.59

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Solution

The fourth proportional to 21,415.13, 32,116.55 and 7,374.59 is: 11,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.13 : 32,116.55 = 7,374.59 : x
  2. Step 2: Convert to fraction form
    21,415.13/32,116.55 = 7,374.59/x
  3. Step 3: Cross multiply
    21,415.13x = 32,116.55 × 7,374.59
  4. Step 4: Simplify right side
    21,415.13x = 236,846,533.58
  5. Step 5: Solve for x
    x = 236,846,533.58/21,415.13
  6. Step 6: Final answer
    x = 11,059.77

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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.