Home / 28,043.62-38,699.12-15,468.36

Finding the Fourth Proportional to 28,043.62, 38,699.12 and 15,468.36

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Solution

The fourth proportional to 28,043.62, 38,699.12 and 15,468.36 is: 21,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.62 : 38,699.12 = 15,468.36 : x
  2. Step 2: Convert to fraction form
    28,043.62/38,699.12 = 15,468.36/x
  3. Step 3: Cross multiply
    28,043.62x = 38,699.12 × 15,468.36
  4. Step 4: Simplify right side
    28,043.62x = 598,611,919.84
  5. Step 5: Solve for x
    x = 598,611,919.84/28,043.62
  6. Step 6: Final answer
    x = 21,345.74

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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.