Home / 21,756.84-32,625.08-12,753.70

Finding the Fourth Proportional to 21,756.84, 32,625.08 and 12,753.70

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Solution

The fourth proportional to 21,756.84, 32,625.08 and 12,753.70 is: 19,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.84 : 32,625.08 = 12,753.70 : x
  2. Step 2: Convert to fraction form
    21,756.84/32,625.08 = 12,753.70/x
  3. Step 3: Cross multiply
    21,756.84x = 32,625.08 × 12,753.70
  4. Step 4: Simplify right side
    21,756.84x = 416,090,482.80
  5. Step 5: Solve for x
    x = 416,090,482.80/21,756.84
  6. Step 6: Final answer
    x = 19,124.58

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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.