Home / 28,113.87-38,819.49-17,374.35

Finding the Fourth Proportional to 28,113.87, 38,819.49 and 17,374.35

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Solution

The fourth proportional to 28,113.87, 38,819.49 and 17,374.35 is: 23,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.87 : 38,819.49 = 17,374.35 : x
  2. Step 2: Convert to fraction form
    28,113.87/38,819.49 = 17,374.35/x
  3. Step 3: Cross multiply
    28,113.87x = 38,819.49 × 17,374.35
  4. Step 4: Simplify right side
    28,113.87x = 674,463,406.08
  5. Step 5: Solve for x
    x = 674,463,406.08/28,113.87
  6. Step 6: Final answer
    x = 23,990.41

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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.