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Finding the Fourth Proportional to 24,281.60, 36,422.40 and 21,430.40

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Solution

The fourth proportional to 24,281.60, 36,422.40 and 21,430.40 is: 32,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,281.60 : 36,422.40 = 21,430.40 : x
  2. Step 2: Convert to fraction form
    24,281.60/36,422.40 = 21,430.40/x
  3. Step 3: Cross multiply
    24,281.60x = 36,422.40 × 21,430.40
  4. Step 4: Simplify right side
    24,281.60x = 780,546,600.96
  5. Step 5: Solve for x
    x = 780,546,600.96/24,281.60
  6. Step 6: Final answer
    x = 32,145.60

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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.