Home / 42,212.55-63,310.73-12,631.35

Finding the Fourth Proportional to 42,212.55, 63,310.73 and 12,631.35

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Solution

The fourth proportional to 42,212.55, 63,310.73 and 12,631.35 is: 18,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,212.55 : 63,310.73 = 12,631.35 : x
  2. Step 2: Convert to fraction form
    42,212.55/63,310.73 = 12,631.35/x
  3. Step 3: Cross multiply
    42,212.55x = 63,310.73 × 12,631.35
  4. Step 4: Simplify right side
    42,212.55x = 799,699,926.23
  5. Step 5: Solve for x
    x = 799,699,926.23/42,212.55
  6. Step 6: Final answer
    x = 18,944.60

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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.