Home / 28,581.36-42,871.72-10,109.04

Finding the Fourth Proportional to 28,581.36, 42,871.72 and 10,109.04

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Solution

The fourth proportional to 28,581.36, 42,871.72 and 10,109.04 is: 15,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.36 : 42,871.72 = 10,109.04 : x
  2. Step 2: Convert to fraction form
    28,581.36/42,871.72 = 10,109.04/x
  3. Step 3: Cross multiply
    28,581.36x = 42,871.72 × 10,109.04
  4. Step 4: Simplify right side
    28,581.36x = 433,391,932.35
  5. Step 5: Solve for x
    x = 433,391,932.35/28,581.36
  6. Step 6: Final answer
    x = 15,163.45

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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.