Home / 28,435.80-42,617.70-10,882.20

Finding the Fourth Proportional to 28,435.80, 42,617.70 and 10,882.20

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Solution

The fourth proportional to 28,435.80, 42,617.70 and 10,882.20 is: 16,309.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.80 : 42,617.70 = 10,882.20 : x
  2. Step 2: Convert to fraction form
    28,435.80/42,617.70 = 10,882.20/x
  3. Step 3: Cross multiply
    28,435.80x = 42,617.70 × 10,882.20
  4. Step 4: Simplify right side
    28,435.80x = 463,774,334.94
  5. Step 5: Solve for x
    x = 463,774,334.94/28,435.80
  6. Step 6: Final answer
    x = 16,309.52

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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.