Home / 17,621.60-26,432.40-15,663.20

Finding the Fourth Proportional to 17,621.60, 26,432.40 and 15,663.20

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Solution

The fourth proportional to 17,621.60, 26,432.40 and 15,663.20 is: 23,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.60 : 26,432.40 = 15,663.20 : x
  2. Step 2: Convert to fraction form
    17,621.60/26,432.40 = 15,663.20/x
  3. Step 3: Cross multiply
    17,621.60x = 26,432.40 × 15,663.20
  4. Step 4: Simplify right side
    17,621.60x = 414,015,967.68
  5. Step 5: Solve for x
    x = 414,015,967.68/17,621.60
  6. Step 6: Final answer
    x = 23,494.80

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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.