Home / 43,675.86-65,513.73-13,690.30

Finding the Fourth Proportional to 43,675.86, 65,513.73 and 13,690.30

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Solution

The fourth proportional to 43,675.86, 65,513.73 and 13,690.30 is: 20,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,675.86 : 65,513.73 = 13,690.30 : x
  2. Step 2: Convert to fraction form
    43,675.86/65,513.73 = 13,690.30/x
  3. Step 3: Cross multiply
    43,675.86x = 65,513.73 × 13,690.30
  4. Step 4: Simplify right side
    43,675.86x = 896,902,617.82
  5. Step 5: Solve for x
    x = 896,902,617.82/43,675.86
  6. Step 6: Final answer
    x = 20,535.43

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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.