Home / 42,372.89-63,559.79-12,790.97

Finding the Fourth Proportional to 42,372.89, 63,559.79 and 12,790.97

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Solution

The fourth proportional to 42,372.89, 63,559.79 and 12,790.97 is: 19,186.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,372.89 : 63,559.79 = 12,790.97 : x
  2. Step 2: Convert to fraction form
    42,372.89/63,559.79 = 12,790.97/x
  3. Step 3: Cross multiply
    42,372.89x = 63,559.79 × 12,790.97
  4. Step 4: Simplify right side
    42,372.89x = 812,991,303.14
  5. Step 5: Solve for x
    x = 812,991,303.14/42,372.89
  6. Step 6: Final answer
    x = 19,186.59

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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.