Home / 19,228.06-28,839.79-5,187.02

Finding the Fourth Proportional to 19,228.06, 28,839.79 and 5,187.02

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Solution

The fourth proportional to 19,228.06, 28,839.79 and 5,187.02 is: 7,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.06 : 28,839.79 = 5,187.02 : x
  2. Step 2: Convert to fraction form
    19,228.06/28,839.79 = 5,187.02/x
  3. Step 3: Cross multiply
    19,228.06x = 28,839.79 × 5,187.02
  4. Step 4: Simplify right side
    19,228.06x = 149,592,429.81
  5. Step 5: Solve for x
    x = 149,592,429.81/19,228.06
  6. Step 6: Final answer
    x = 7,779.90

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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.