Home / 28,260.60-42,397.65-8,539.35

Finding the Fourth Proportional to 28,260.60, 42,397.65 and 8,539.35

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Solution

The fourth proportional to 28,260.60, 42,397.65 and 8,539.35 is: 12,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.60 : 42,397.65 = 8,539.35 : x
  2. Step 2: Convert to fraction form
    28,260.60/42,397.65 = 8,539.35/x
  3. Step 3: Cross multiply
    28,260.60x = 42,397.65 × 8,539.35
  4. Step 4: Simplify right side
    28,260.60x = 362,048,372.53
  5. Step 5: Solve for x
    x = 362,048,372.53/28,260.60
  6. Step 6: Final answer
    x = 12,811.06

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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.