Home / 19,928.30-27,499.02-12,270.36

Finding the Fourth Proportional to 19,928.30, 27,499.02 and 12,270.36

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Solution

The fourth proportional to 19,928.30, 27,499.02 and 12,270.36 is: 16,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.30 : 27,499.02 = 12,270.36 : x
  2. Step 2: Convert to fraction form
    19,928.30/27,499.02 = 12,270.36/x
  3. Step 3: Cross multiply
    19,928.30x = 27,499.02 × 12,270.36
  4. Step 4: Simplify right side
    19,928.30x = 337,422,806.30
  5. Step 5: Solve for x
    x = 337,422,806.30/19,928.30
  6. Step 6: Final answer
    x = 16,931.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.