Home / 42,570.96-63,790.82-18,874.81

Finding the Fourth Proportional to 42,570.96, 63,790.82 and 18,874.81

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Solution

The fourth proportional to 42,570.96, 63,790.82 and 18,874.81 is: 28,283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,570.96 : 63,790.82 = 18,874.81 : x
  2. Step 2: Convert to fraction form
    42,570.96/63,790.82 = 18,874.81/x
  3. Step 3: Cross multiply
    42,570.96x = 63,790.82 × 18,874.81
  4. Step 4: Simplify right side
    42,570.96x = 1,204,039,607.24
  5. Step 5: Solve for x
    x = 1,204,039,607.24/42,570.96
  6. Step 6: Final answer
    x = 28,283.12

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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.