Home / 28,008.58-38,653.57-15,433.30

Finding the Fourth Proportional to 28,008.58, 38,653.57 and 15,433.30

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Solution

The fourth proportional to 28,008.58, 38,653.57 and 15,433.30 is: 21,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.58 : 38,653.57 = 15,433.30 : x
  2. Step 2: Convert to fraction form
    28,008.58/38,653.57 = 15,433.30/x
  3. Step 3: Cross multiply
    28,008.58x = 38,653.57 × 15,433.30
  4. Step 4: Simplify right side
    28,008.58x = 596,552,141.88
  5. Step 5: Solve for x
    x = 596,552,141.88/28,008.58
  6. Step 6: Final answer
    x = 21,298.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.