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Finding the Fourth Proportional to 28,977.60, 43,498.80 and 22,432.80

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Solution

The fourth proportional to 28,977.60, 43,498.80 and 22,432.80 is: 33,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.60 : 43,498.80 = 22,432.80 : x
  2. Step 2: Convert to fraction form
    28,977.60/43,498.80 = 22,432.80/x
  3. Step 3: Cross multiply
    28,977.60x = 43,498.80 × 22,432.80
  4. Step 4: Simplify right side
    28,977.60x = 975,799,880.64
  5. Step 5: Solve for x
    x = 975,799,880.64/28,977.60
  6. Step 6: Final answer
    x = 33,674.28

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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.