Home / 28,985.40-43,448.68-16,479.58

Finding the Fourth Proportional to 28,985.40, 43,448.68 and 16,479.58

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Solution

The fourth proportional to 28,985.40, 43,448.68 and 16,479.58 is: 24,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.40 : 43,448.68 = 16,479.58 : x
  2. Step 2: Convert to fraction form
    28,985.40/43,448.68 = 16,479.58/x
  3. Step 3: Cross multiply
    28,985.40x = 43,448.68 × 16,479.58
  4. Step 4: Simplify right side
    28,985.40x = 716,015,997.95
  5. Step 5: Solve for x
    x = 716,015,997.95/28,985.40
  6. Step 6: Final answer
    x = 24,702.64

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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.