Home / 28,416.70-42,637.20-17,894.80

Finding the Fourth Proportional to 28,416.70, 42,637.20 and 17,894.80

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Solution

The fourth proportional to 28,416.70, 42,637.20 and 17,894.80 is: 26,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.70 : 42,637.20 = 17,894.80 : x
  2. Step 2: Convert to fraction form
    28,416.70/42,637.20 = 17,894.80/x
  3. Step 3: Cross multiply
    28,416.70x = 42,637.20 × 17,894.80
  4. Step 4: Simplify right side
    28,416.70x = 762,984,166.56
  5. Step 5: Solve for x
    x = 762,984,166.56/28,416.70
  6. Step 6: Final answer
    x = 26,849.85

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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.