Home / 19,038.68-28,601.82-13,505.72

Finding the Fourth Proportional to 19,038.68, 28,601.82 and 13,505.72

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Solution

The fourth proportional to 19,038.68, 28,601.82 and 13,505.72 is: 20,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.68 : 28,601.82 = 13,505.72 : x
  2. Step 2: Convert to fraction form
    19,038.68/28,601.82 = 13,505.72/x
  3. Step 3: Cross multiply
    19,038.68x = 28,601.82 × 13,505.72
  4. Step 4: Simplify right side
    19,038.68x = 386,288,172.41
  5. Step 5: Solve for x
    x = 386,288,172.41/19,038.68
  6. Step 6: Final answer
    x = 20,289.65

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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.