Home / 19,320.09-28,960.54-10,982.88

Finding the Fourth Proportional to 19,320.09, 28,960.54 and 10,982.88

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Solution

The fourth proportional to 19,320.09, 28,960.54 and 10,982.88 is: 16,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.09 : 28,960.54 = 10,982.88 : x
  2. Step 2: Convert to fraction form
    19,320.09/28,960.54 = 10,982.88/x
  3. Step 3: Cross multiply
    19,320.09x = 28,960.54 × 10,982.88
  4. Step 4: Simplify right side
    19,320.09x = 318,070,187.45
  5. Step 5: Solve for x
    x = 318,070,187.45/19,320.09
  6. Step 6: Final answer
    x = 16,463.18

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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.