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Finding the Fourth Proportional to 15,780.60, 23,670.90 and 15,051.60

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Solution

The fourth proportional to 15,780.60, 23,670.90 and 15,051.60 is: 22,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.60 : 23,670.90 = 15,051.60 : x
  2. Step 2: Convert to fraction form
    15,780.60/23,670.90 = 15,051.60/x
  3. Step 3: Cross multiply
    15,780.60x = 23,670.90 × 15,051.60
  4. Step 4: Simplify right side
    15,780.60x = 356,284,918.44
  5. Step 5: Solve for x
    x = 356,284,918.44/15,780.60
  6. Step 6: Final answer
    x = 22,577.40

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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.