Home / 30,103.38-45,158.04-10,379.34

Finding the Fourth Proportional to 30,103.38, 45,158.04 and 10,379.34

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Solution

The fourth proportional to 30,103.38, 45,158.04 and 10,379.34 is: 15,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.38 : 45,158.04 = 10,379.34 : x
  2. Step 2: Convert to fraction form
    30,103.38/45,158.04 = 10,379.34/x
  3. Step 3: Cross multiply
    30,103.38x = 45,158.04 × 10,379.34
  4. Step 4: Simplify right side
    30,103.38x = 468,710,650.89
  5. Step 5: Solve for x
    x = 468,710,650.89/30,103.38
  6. Step 6: Final answer
    x = 15,570.03

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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.