Home / 42,827.58-64,217.88-13,237.20

Finding the Fourth Proportional to 42,827.58, 64,217.88 and 13,237.20

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Solution

The fourth proportional to 42,827.58, 64,217.88 and 13,237.20 is: 19,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,827.58 : 64,217.88 = 13,237.20 : x
  2. Step 2: Convert to fraction form
    42,827.58/64,217.88 = 13,237.20/x
  3. Step 3: Cross multiply
    42,827.58x = 64,217.88 × 13,237.20
  4. Step 4: Simplify right side
    42,827.58x = 850,064,921.14
  5. Step 5: Solve for x
    x = 850,064,921.14/42,827.58
  6. Step 6: Final answer
    x = 19,848.54

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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.