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Finding the Fourth Proportional to 28,928.40, 43,360.20 and 16,454.40

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Solution

The fourth proportional to 28,928.40, 43,360.20 and 16,454.40 is: 24,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.40 : 43,360.20 = 16,454.40 : x
  2. Step 2: Convert to fraction form
    28,928.40/43,360.20 = 16,454.40/x
  3. Step 3: Cross multiply
    28,928.40x = 43,360.20 × 16,454.40
  4. Step 4: Simplify right side
    28,928.40x = 713,466,074.88
  5. Step 5: Solve for x
    x = 713,466,074.88/28,928.40
  6. Step 6: Final answer
    x = 24,663.17

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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.