Home / 42,439.84-63,666.36-12,850.63

Finding the Fourth Proportional to 42,439.84, 63,666.36 and 12,850.63

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Solution

The fourth proportional to 42,439.84, 63,666.36 and 12,850.63 is: 19,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,439.84 : 63,666.36 = 12,850.63 : x
  2. Step 2: Convert to fraction form
    42,439.84/63,666.36 = 12,850.63/x
  3. Step 3: Cross multiply
    42,439.84x = 63,666.36 × 12,850.63
  4. Step 4: Simplify right side
    42,439.84x = 818,152,676.64
  5. Step 5: Solve for x
    x = 818,152,676.64/42,439.84
  6. Step 6: Final answer
    x = 19,277.94

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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.