Home / 42,665.57-63,950.65-15,985.89

Finding the Fourth Proportional to 42,665.57, 63,950.65 and 15,985.89

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Solution

The fourth proportional to 42,665.57, 63,950.65 and 15,985.89 is: 23,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,665.57 : 63,950.65 = 15,985.89 : x
  2. Step 2: Convert to fraction form
    42,665.57/63,950.65 = 15,985.89/x
  3. Step 3: Cross multiply
    42,665.57x = 63,950.65 × 15,985.89
  4. Step 4: Simplify right side
    42,665.57x = 1,022,308,056.33
  5. Step 5: Solve for x
    x = 1,022,308,056.33/42,665.57
  6. Step 6: Final answer
    x = 23,960.96

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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.