Home / 28,489.64-39,316.67-17,885.12

Finding the Fourth Proportional to 28,489.64, 39,316.67 and 17,885.12

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Solution

The fourth proportional to 28,489.64, 39,316.67 and 17,885.12 is: 24,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.64 : 39,316.67 = 17,885.12 : x
  2. Step 2: Convert to fraction form
    28,489.64/39,316.67 = 17,885.12/x
  3. Step 3: Cross multiply
    28,489.64x = 39,316.67 × 17,885.12
  4. Step 4: Simplify right side
    28,489.64x = 703,183,074.94
  5. Step 5: Solve for x
    x = 703,183,074.94/28,489.64
  6. Step 6: Final answer
    x = 24,682.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.