Home / 28,109.37-42,170.13-10,579.15

Finding the Fourth Proportional to 28,109.37, 42,170.13 and 10,579.15

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Solution

The fourth proportional to 28,109.37, 42,170.13 and 10,579.15 is: 15,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109.37 : 42,170.13 = 10,579.15 : x
  2. Step 2: Convert to fraction form
    28,109.37/42,170.13 = 10,579.15/x
  3. Step 3: Cross multiply
    28,109.37x = 42,170.13 × 10,579.15
  4. Step 4: Simplify right side
    28,109.37x = 446,124,025.36
  5. Step 5: Solve for x
    x = 446,124,025.36/28,109.37
  6. Step 6: Final answer
    x = 15,871.01

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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.