Home / 28,907.20-43,328.40-14,861.80

Finding the Fourth Proportional to 28,907.20, 43,328.40 and 14,861.80

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Solution

The fourth proportional to 28,907.20, 43,328.40 and 14,861.80 is: 22,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.20 : 43,328.40 = 14,861.80 : x
  2. Step 2: Convert to fraction form
    28,907.20/43,328.40 = 14,861.80/x
  3. Step 3: Cross multiply
    28,907.20x = 43,328.40 × 14,861.80
  4. Step 4: Simplify right side
    28,907.20x = 643,938,015.12
  5. Step 5: Solve for x
    x = 643,938,015.12/28,907.20
  6. Step 6: Final answer
    x = 22,276.04

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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.