Home / 28,707.68-39,627.43-16,774.90

Finding the Fourth Proportional to 28,707.68, 39,627.43 and 16,774.90

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Solution

The fourth proportional to 28,707.68, 39,627.43 and 16,774.90 is: 23,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.68 : 39,627.43 = 16,774.90 : x
  2. Step 2: Convert to fraction form
    28,707.68/39,627.43 = 16,774.90/x
  3. Step 3: Cross multiply
    28,707.68x = 39,627.43 × 16,774.90
  4. Step 4: Simplify right side
    28,707.68x = 664,746,034.50
  5. Step 5: Solve for x
    x = 664,746,034.50/28,707.68
  6. Step 6: Final answer
    x = 23,155.68

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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.