Home / 30,122.21-45,179.46-7,937.30

Finding the Fourth Proportional to 30,122.21, 45,179.46 and 7,937.30

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Solution

The fourth proportional to 30,122.21, 45,179.46 and 7,937.30 is: 11,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.21 : 45,179.46 = 7,937.30 : x
  2. Step 2: Convert to fraction form
    30,122.21/45,179.46 = 7,937.30/x
  3. Step 3: Cross multiply
    30,122.21x = 45,179.46 × 7,937.30
  4. Step 4: Simplify right side
    30,122.21x = 358,602,927.86
  5. Step 5: Solve for x
    x = 358,602,927.86/30,122.21
  6. Step 6: Final answer
    x = 11,904.93

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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.