Home / 19,124.55-28,662.39-15,428.52

Finding the Fourth Proportional to 19,124.55, 28,662.39 and 15,428.52

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Solution

The fourth proportional to 19,124.55, 28,662.39 and 15,428.52 is: 23,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.55 : 28,662.39 = 15,428.52 : x
  2. Step 2: Convert to fraction form
    19,124.55/28,662.39 = 15,428.52/x
  3. Step 3: Cross multiply
    19,124.55x = 28,662.39 × 15,428.52
  4. Step 4: Simplify right side
    19,124.55x = 442,218,257.36
  5. Step 5: Solve for x
    x = 442,218,257.36/19,124.55
  6. Step 6: Final answer
    x = 23,123.07

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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.