Home / 42,506-63,761.26-12,921.58

Finding the Fourth Proportional to 42,506, 63,761.26 and 12,921.58

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Solution

The fourth proportional to 42,506, 63,761.26 and 12,921.58 is: 19,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,506 : 63,761.26 = 12,921.58 : x
  2. Step 2: Convert to fraction form
    42,506/63,761.26 = 12,921.58/x
  3. Step 3: Cross multiply
    42,506x = 63,761.26 × 12,921.58
  4. Step 4: Simplify right side
    42,506x = 823,896,221.99
  5. Step 5: Solve for x
    x = 823,896,221.99/42,506
  6. Step 6: Final answer
    x = 19,383.06

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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.