Home / 42,477.88-63,686.48-19,975.96

Finding the Fourth Proportional to 42,477.88, 63,686.48 and 19,975.96

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Solution

The fourth proportional to 42,477.88, 63,686.48 and 19,975.96 is: 29,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,477.88 : 63,686.48 = 19,975.96 : x
  2. Step 2: Convert to fraction form
    42,477.88/63,686.48 = 19,975.96/x
  3. Step 3: Cross multiply
    42,477.88x = 63,686.48 × 19,975.96
  4. Step 4: Simplify right side
    42,477.88x = 1,272,198,577.02
  5. Step 5: Solve for x
    x = 1,272,198,577.02/42,477.88
  6. Step 6: Final answer
    x = 29,949.67

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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.