Home / 28,359.88-42,475.12-13,579.26

Finding the Fourth Proportional to 28,359.88, 42,475.12 and 13,579.26

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Solution

The fourth proportional to 28,359.88, 42,475.12 and 13,579.26 is: 20,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.88 : 42,475.12 = 13,579.26 : x
  2. Step 2: Convert to fraction form
    28,359.88/42,475.12 = 13,579.26/x
  3. Step 3: Cross multiply
    28,359.88x = 42,475.12 × 13,579.26
  4. Step 4: Simplify right side
    28,359.88x = 576,780,698.01
  5. Step 5: Solve for x
    x = 576,780,698.01/28,359.88
  6. Step 6: Final answer
    x = 20,337.91

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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.