Home / 42,343.56-63,518.04-11,178

Finding the Fourth Proportional to 42,343.56, 63,518.04 and 11,178

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Solution

The fourth proportional to 42,343.56, 63,518.04 and 11,178 is: 16,767.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,343.56 : 63,518.04 = 11,178 : x
  2. Step 2: Convert to fraction form
    42,343.56/63,518.04 = 11,178/x
  3. Step 3: Cross multiply
    42,343.56x = 63,518.04 × 11,178
  4. Step 4: Simplify right side
    42,343.56x = 710,004,651.12
  5. Step 5: Solve for x
    x = 710,004,651.12/42,343.56
  6. Step 6: Final answer
    x = 16,767.71

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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.