Home / 28,017.40-42,029.74-10,245.29

Finding the Fourth Proportional to 28,017.40, 42,029.74 and 10,245.29

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Solution

The fourth proportional to 28,017.40, 42,029.74 and 10,245.29 is: 15,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.40 : 42,029.74 = 10,245.29 : x
  2. Step 2: Convert to fraction form
    28,017.40/42,029.74 = 10,245.29/x
  3. Step 3: Cross multiply
    28,017.40x = 42,029.74 × 10,245.29
  4. Step 4: Simplify right side
    28,017.40x = 430,606,874.92
  5. Step 5: Solve for x
    x = 430,606,874.92/28,017.40
  6. Step 6: Final answer
    x = 15,369.27

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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.