Home / 21,622.40-32,433.60-16,438.40

Finding the Fourth Proportional to 21,622.40, 32,433.60 and 16,438.40

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Solution

The fourth proportional to 21,622.40, 32,433.60 and 16,438.40 is: 24,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.40 : 32,433.60 = 16,438.40 : x
  2. Step 2: Convert to fraction form
    21,622.40/32,433.60 = 16,438.40/x
  3. Step 3: Cross multiply
    21,622.40x = 32,433.60 × 16,438.40
  4. Step 4: Simplify right side
    21,622.40x = 533,156,490.24
  5. Step 5: Solve for x
    x = 533,156,490.24/21,622.40
  6. Step 6: Final answer
    x = 24,657.60

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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.