Home / 19,258.08-28,888.20-5,406

Finding the Fourth Proportional to 19,258.08, 28,888.20 and 5,406

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Solution

The fourth proportional to 19,258.08, 28,888.20 and 5,406 is: 8,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.08 : 28,888.20 = 5,406 : x
  2. Step 2: Convert to fraction form
    19,258.08/28,888.20 = 5,406/x
  3. Step 3: Cross multiply
    19,258.08x = 28,888.20 × 5,406
  4. Step 4: Simplify right side
    19,258.08x = 156,169,609.20
  5. Step 5: Solve for x
    x = 156,169,609.20/19,258.08
  6. Step 6: Final answer
    x = 8,109.30

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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.