Home / 19,210.90-28,816.30-5,359.90

Finding the Fourth Proportional to 19,210.90, 28,816.30 and 5,359.90

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Solution

The fourth proportional to 19,210.90, 28,816.30 and 5,359.90 is: 8,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.90 : 28,816.30 = 5,359.90 : x
  2. Step 2: Convert to fraction form
    19,210.90/28,816.30 = 5,359.90/x
  3. Step 3: Cross multiply
    19,210.90x = 28,816.30 × 5,359.90
  4. Step 4: Simplify right side
    19,210.90x = 154,452,486.37
  5. Step 5: Solve for x
    x = 154,452,486.37/19,210.90
  6. Step 6: Final answer
    x = 8,039.84

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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.