Home / 28,810.70-43,200.45-12,997.25

Finding the Fourth Proportional to 28,810.70, 43,200.45 and 12,997.25

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Solution

The fourth proportional to 28,810.70, 43,200.45 and 12,997.25 is: 19,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.70 : 43,200.45 = 12,997.25 : x
  2. Step 2: Convert to fraction form
    28,810.70/43,200.45 = 12,997.25/x
  3. Step 3: Cross multiply
    28,810.70x = 43,200.45 × 12,997.25
  4. Step 4: Simplify right side
    28,810.70x = 561,487,048.76
  5. Step 5: Solve for x
    x = 561,487,048.76/28,810.70
  6. Step 6: Final answer
    x = 19,488.84

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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.