Home / 38,424.06-57,628.80-12,126.60

Finding the Fourth Proportional to 38,424.06, 57,628.80 and 12,126.60

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Solution

The fourth proportional to 38,424.06, 57,628.80 and 12,126.60 is: 18,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.06 : 57,628.80 = 12,126.60 : x
  2. Step 2: Convert to fraction form
    38,424.06/57,628.80 = 12,126.60/x
  3. Step 3: Cross multiply
    38,424.06x = 57,628.80 × 12,126.60
  4. Step 4: Simplify right side
    38,424.06x = 698,841,406.08
  5. Step 5: Solve for x
    x = 698,841,406.08/38,424.06
  6. Step 6: Final answer
    x = 18,187.60

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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.