Home / 42,619.14-63,904.08-18,926.64

Finding the Fourth Proportional to 42,619.14, 63,904.08 and 18,926.64

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Solution

The fourth proportional to 42,619.14, 63,904.08 and 18,926.64 is: 28,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.14 : 63,904.08 = 18,926.64 : x
  2. Step 2: Convert to fraction form
    42,619.14/63,904.08 = 18,926.64/x
  3. Step 3: Cross multiply
    42,619.14x = 63,904.08 × 18,926.64
  4. Step 4: Simplify right side
    42,619.14x = 1,209,489,516.69
  5. Step 5: Solve for x
    x = 1,209,489,516.69/42,619.14
  6. Step 6: Final answer
    x = 28,379.02

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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.