Home / 42,658.35-63,999.82-13,080.55

Finding the Fourth Proportional to 42,658.35, 63,999.82 and 13,080.55

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Solution

The fourth proportional to 42,658.35, 63,999.82 and 13,080.55 is: 19,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,658.35 : 63,999.82 = 13,080.55 : x
  2. Step 2: Convert to fraction form
    42,658.35/63,999.82 = 13,080.55/x
  3. Step 3: Cross multiply
    42,658.35x = 63,999.82 × 13,080.55
  4. Step 4: Simplify right side
    42,658.35x = 837,152,845.50
  5. Step 5: Solve for x
    x = 837,152,845.50/42,658.35
  6. Step 6: Final answer
    x = 19,624.60

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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.