Home / 28,421.96-42,596.43-13,608.68

Finding the Fourth Proportional to 28,421.96, 42,596.43 and 13,608.68

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Solution

The fourth proportional to 28,421.96, 42,596.43 and 13,608.68 is: 20,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.96 : 42,596.43 = 13,608.68 : x
  2. Step 2: Convert to fraction form
    28,421.96/42,596.43 = 13,608.68/x
  3. Step 3: Cross multiply
    28,421.96x = 42,596.43 × 13,608.68
  4. Step 4: Simplify right side
    28,421.96x = 579,680,972.03
  5. Step 5: Solve for x
    x = 579,680,972.03/28,421.96
  6. Step 6: Final answer
    x = 20,395.53

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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.