Home / 28,872.40-43,276.20-16,398.40

Finding the Fourth Proportional to 28,872.40, 43,276.20 and 16,398.40

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Solution

The fourth proportional to 28,872.40, 43,276.20 and 16,398.40 is: 24,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.40 : 43,276.20 = 16,398.40 : x
  2. Step 2: Convert to fraction form
    28,872.40/43,276.20 = 16,398.40/x
  3. Step 3: Cross multiply
    28,872.40x = 43,276.20 × 16,398.40
  4. Step 4: Simplify right side
    28,872.40x = 709,660,438.08
  5. Step 5: Solve for x
    x = 709,660,438.08/28,872.40
  6. Step 6: Final answer
    x = 24,579.20

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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.