Home / 28,500.22-42,759.55-13,707.21

Finding the Fourth Proportional to 28,500.22, 42,759.55 and 13,707.21

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Solution

The fourth proportional to 28,500.22, 42,759.55 and 13,707.21 is: 20,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.22 : 42,759.55 = 13,707.21 : x
  2. Step 2: Convert to fraction form
    28,500.22/42,759.55 = 13,707.21/x
  3. Step 3: Cross multiply
    28,500.22x = 42,759.55 × 13,707.21
  4. Step 4: Simplify right side
    28,500.22x = 586,114,308.84
  5. Step 5: Solve for x
    x = 586,114,308.84/28,500.22
  6. Step 6: Final answer
    x = 20,565.25

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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.