Home / 19,350.20-28,995.86-8,814.08

Finding the Fourth Proportional to 19,350.20, 28,995.86 and 8,814.08

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Solution

The fourth proportional to 19,350.20, 28,995.86 and 8,814.08 is: 13,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.20 : 28,995.86 = 8,814.08 : x
  2. Step 2: Convert to fraction form
    19,350.20/28,995.86 = 8,814.08/x
  3. Step 3: Cross multiply
    19,350.20x = 28,995.86 × 8,814.08
  4. Step 4: Simplify right side
    19,350.20x = 255,571,829.71
  5. Step 5: Solve for x
    x = 255,571,829.71/19,350.20
  6. Step 6: Final answer
    x = 13,207.71

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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.