Home / 19,210.30-28,815.41-5,359.30

Finding the Fourth Proportional to 19,210.30, 28,815.41 and 5,359.30

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Solution

The fourth proportional to 19,210.30, 28,815.41 and 5,359.30 is: 8,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.30 : 28,815.41 = 5,359.30 : x
  2. Step 2: Convert to fraction form
    19,210.30/28,815.41 = 5,359.30/x
  3. Step 3: Cross multiply
    19,210.30x = 28,815.41 × 5,359.30
  4. Step 4: Simplify right side
    19,210.30x = 154,430,400.02
  5. Step 5: Solve for x
    x = 154,430,400.02/19,210.30
  6. Step 6: Final answer
    x = 8,038.94

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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.