Home / 21,615.18-32,425.60-8,465.84

Finding the Fourth Proportional to 21,615.18, 32,425.60 and 8,465.84

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Solution

The fourth proportional to 21,615.18, 32,425.60 and 8,465.84 is: 12,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.18 : 32,425.60 = 8,465.84 : x
  2. Step 2: Convert to fraction form
    21,615.18/32,425.60 = 8,465.84/x
  3. Step 3: Cross multiply
    21,615.18x = 32,425.60 × 8,465.84
  4. Step 4: Simplify right side
    21,615.18x = 274,509,737.05
  5. Step 5: Solve for x
    x = 274,509,737.05/21,615.18
  6. Step 6: Final answer
    x = 12,699.86

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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.