Home / 42,611.61-63,926.55-13,031.64

Finding the Fourth Proportional to 42,611.61, 63,926.55 and 13,031.64

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Solution

The fourth proportional to 42,611.61, 63,926.55 and 13,031.64 is: 19,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,611.61 : 63,926.55 = 13,031.64 : x
  2. Step 2: Convert to fraction form
    42,611.61/63,926.55 = 13,031.64/x
  3. Step 3: Cross multiply
    42,611.61x = 63,926.55 × 13,031.64
  4. Step 4: Simplify right side
    42,611.61x = 833,067,786.04
  5. Step 5: Solve for x
    x = 833,067,786.04/42,611.61
  6. Step 6: Final answer
    x = 19,550.25

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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.