Home / 28,727.34-39,639.15-17,394.90

Finding the Fourth Proportional to 28,727.34, 39,639.15 and 17,394.90

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Solution

The fourth proportional to 28,727.34, 39,639.15 and 17,394.90 is: 24,002.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.34 : 39,639.15 = 17,394.90 : x
  2. Step 2: Convert to fraction form
    28,727.34/39,639.15 = 17,394.90/x
  3. Step 3: Cross multiply
    28,727.34x = 39,639.15 × 17,394.90
  4. Step 4: Simplify right side
    28,727.34x = 689,519,050.34
  5. Step 5: Solve for x
    x = 689,519,050.34/28,727.34
  6. Step 6: Final answer
    x = 24,002.19

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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.