Home / 21,518.91-32,265.95-8,355.92

Finding the Fourth Proportional to 21,518.91, 32,265.95 and 8,355.92

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Solution

The fourth proportional to 21,518.91, 32,265.95 and 8,355.92 is: 12,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.91 : 32,265.95 = 8,355.92 : x
  2. Step 2: Convert to fraction form
    21,518.91/32,265.95 = 8,355.92/x
  3. Step 3: Cross multiply
    21,518.91x = 32,265.95 × 8,355.92
  4. Step 4: Simplify right side
    21,518.91x = 269,611,493.81
  5. Step 5: Solve for x
    x = 269,611,493.81/21,518.91
  6. Step 6: Final answer
    x = 12,529.05

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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.