Home / 19,088.20-28,632.30-12,089.80

Finding the Fourth Proportional to 19,088.20, 28,632.30 and 12,089.80

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Solution

The fourth proportional to 19,088.20, 28,632.30 and 12,089.80 is: 18,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.20 : 28,632.30 = 12,089.80 : x
  2. Step 2: Convert to fraction form
    19,088.20/28,632.30 = 12,089.80/x
  3. Step 3: Cross multiply
    19,088.20x = 28,632.30 × 12,089.80
  4. Step 4: Simplify right side
    19,088.20x = 346,158,780.54
  5. Step 5: Solve for x
    x = 346,158,780.54/19,088.20
  6. Step 6: Final answer
    x = 18,134.70

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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.