Home / 19,325.97-28,988.03-11,325.20

Finding the Fourth Proportional to 19,325.97, 28,988.03 and 11,325.20

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Solution

The fourth proportional to 19,325.97, 28,988.03 and 11,325.20 is: 16,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.97 : 28,988.03 = 11,325.20 : x
  2. Step 2: Convert to fraction form
    19,325.97/28,988.03 = 11,325.20/x
  3. Step 3: Cross multiply
    19,325.97x = 28,988.03 × 11,325.20
  4. Step 4: Simplify right side
    19,325.97x = 328,295,035.79
  5. Step 5: Solve for x
    x = 328,295,035.79/19,325.97
  6. Step 6: Final answer
    x = 16,987.25

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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.