Home / 42,431.65-63,647.64-14,351.92

Finding the Fourth Proportional to 42,431.65, 63,647.64 and 14,351.92

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Solution

The fourth proportional to 42,431.65, 63,647.64 and 14,351.92 is: 21,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,431.65 : 63,647.64 = 14,351.92 : x
  2. Step 2: Convert to fraction form
    42,431.65/63,647.64 = 14,351.92/x
  3. Step 3: Cross multiply
    42,431.65x = 63,647.64 × 14,351.92
  4. Step 4: Simplify right side
    42,431.65x = 913,465,678.35
  5. Step 5: Solve for x
    x = 913,465,678.35/42,431.65
  6. Step 6: Final answer
    x = 21,527.93

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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.