Home / 42,573.63-63,860.45-12,991.62

Finding the Fourth Proportional to 42,573.63, 63,860.45 and 12,991.62

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Solution

The fourth proportional to 42,573.63, 63,860.45 and 12,991.62 is: 19,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,573.63 : 63,860.45 = 12,991.62 : x
  2. Step 2: Convert to fraction form
    42,573.63/63,860.45 = 12,991.62/x
  3. Step 3: Cross multiply
    42,573.63x = 63,860.45 × 12,991.62
  4. Step 4: Simplify right side
    42,573.63x = 829,650,634.47
  5. Step 5: Solve for x
    x = 829,650,634.47/42,573.63
  6. Step 6: Final answer
    x = 19,487.43

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Similar ratio
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1.5x scale

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.