Home / 30,124.70-45,178.41-11,652.38

Finding the Fourth Proportional to 30,124.70, 45,178.41 and 11,652.38

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Solution

The fourth proportional to 30,124.70, 45,178.41 and 11,652.38 is: 17,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,124.70 : 45,178.41 = 11,652.38 : x
  2. Step 2: Convert to fraction form
    30,124.70/45,178.41 = 11,652.38/x
  3. Step 3: Cross multiply
    30,124.70x = 45,178.41 × 11,652.38
  4. Step 4: Simplify right side
    30,124.70x = 526,436,001.12
  5. Step 5: Solve for x
    x = 526,436,001.12/30,124.70
  6. Step 6: Final answer
    x = 17,475.23

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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.