Home / 30,117.37-45,178.28-7,930.59

Finding the Fourth Proportional to 30,117.37, 45,178.28 and 7,930.59

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Solution

The fourth proportional to 30,117.37, 45,178.28 and 7,930.59 is: 11,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.37 : 45,178.28 = 7,930.59 : x
  2. Step 2: Convert to fraction form
    30,117.37/45,178.28 = 7,930.59/x
  3. Step 3: Cross multiply
    30,117.37x = 45,178.28 × 7,930.59
  4. Step 4: Simplify right side
    30,117.37x = 358,290,560.22
  5. Step 5: Solve for x
    x = 358,290,560.22/30,117.37
  6. Step 6: Final answer
    x = 11,896.48

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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.