Home / 42,412.88-63,609.60-19,046

Finding the Fourth Proportional to 42,412.88, 63,609.60 and 19,046

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Solution

The fourth proportional to 42,412.88, 63,609.60 and 19,046 is: 28,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,412.88 : 63,609.60 = 19,046 : x
  2. Step 2: Convert to fraction form
    42,412.88/63,609.60 = 19,046/x
  3. Step 3: Cross multiply
    42,412.88x = 63,609.60 × 19,046
  4. Step 4: Simplify right side
    42,412.88x = 1,211,508,441.60
  5. Step 5: Solve for x
    x = 1,211,508,441.60/42,412.88
  6. Step 6: Final answer
    x = 28,564.64

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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.