Home / 17,043.40-25,428.20-15,172.30

Finding the Fourth Proportional to 17,043.40, 25,428.20 and 15,172.30

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Solution

The fourth proportional to 17,043.40, 25,428.20 and 15,172.30 is: 22,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,043.40 : 25,428.20 = 15,172.30 : x
  2. Step 2: Convert to fraction form
    17,043.40/25,428.20 = 15,172.30/x
  3. Step 3: Cross multiply
    17,043.40x = 25,428.20 × 15,172.30
  4. Step 4: Simplify right side
    17,043.40x = 385,804,278.86
  5. Step 5: Solve for x
    x = 385,804,278.86/17,043.40
  6. Step 6: Final answer
    x = 22,636.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.