Home / 43,259.76-64,915.24-18,298.40

Finding the Fourth Proportional to 43,259.76, 64,915.24 and 18,298.40

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Solution

The fourth proportional to 43,259.76, 64,915.24 and 18,298.40 is: 27,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,259.76 : 64,915.24 = 18,298.40 : x
  2. Step 2: Convert to fraction form
    43,259.76/64,915.24 = 18,298.40/x
  3. Step 3: Cross multiply
    43,259.76x = 64,915.24 × 18,298.40
  4. Step 4: Simplify right side
    43,259.76x = 1,187,845,027.62
  5. Step 5: Solve for x
    x = 1,187,845,027.62/43,259.76
  6. Step 6: Final answer
    x = 27,458.43

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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.