Home / 19,089.18-28,641.06-10,778.58

Finding the Fourth Proportional to 19,089.18, 28,641.06 and 10,778.58

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Solution

The fourth proportional to 19,089.18, 28,641.06 and 10,778.58 is: 16,171.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.18 : 28,641.06 = 10,778.58 : x
  2. Step 2: Convert to fraction form
    19,089.18/28,641.06 = 10,778.58/x
  3. Step 3: Cross multiply
    19,089.18x = 28,641.06 × 10,778.58
  4. Step 4: Simplify right side
    19,089.18x = 308,709,956.49
  5. Step 5: Solve for x
    x = 308,709,956.49/19,089.18
  6. Step 6: Final answer
    x = 16,171.99

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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.