Home / 28,830.98-43,263.55-12,190.10

Finding the Fourth Proportional to 28,830.98, 43,263.55 and 12,190.10

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Solution

The fourth proportional to 28,830.98, 43,263.55 and 12,190.10 is: 18,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.98 : 43,263.55 = 12,190.10 : x
  2. Step 2: Convert to fraction form
    28,830.98/43,263.55 = 12,190.10/x
  3. Step 3: Cross multiply
    28,830.98x = 43,263.55 × 12,190.10
  4. Step 4: Simplify right side
    28,830.98x = 527,387,000.86
  5. Step 5: Solve for x
    x = 527,387,000.86/28,830.98
  6. Step 6: Final answer
    x = 18,292.37

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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.