Home / 19,270.58-28,908.08-7,421.59

Finding the Fourth Proportional to 19,270.58, 28,908.08 and 7,421.59

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Solution

The fourth proportional to 19,270.58, 28,908.08 and 7,421.59 is: 11,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.58 : 28,908.08 = 7,421.59 : x
  2. Step 2: Convert to fraction form
    19,270.58/28,908.08 = 7,421.59/x
  3. Step 3: Cross multiply
    19,270.58x = 28,908.08 × 7,421.59
  4. Step 4: Simplify right side
    19,270.58x = 214,543,863.73
  5. Step 5: Solve for x
    x = 214,543,863.73/19,270.58
  6. Step 6: Final answer
    x = 11,133.24

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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.