Home / 21,437.55-29,583.50-12,006.45

Finding the Fourth Proportional to 21,437.55, 29,583.50 and 12,006.45

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Solution

The fourth proportional to 21,437.55, 29,583.50 and 12,006.45 is: 16,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.55 : 29,583.50 = 12,006.45 : x
  2. Step 2: Convert to fraction form
    21,437.55/29,583.50 = 12,006.45/x
  3. Step 3: Cross multiply
    21,437.55x = 29,583.50 × 12,006.45
  4. Step 4: Simplify right side
    21,437.55x = 355,192,753.54
  5. Step 5: Solve for x
    x = 355,192,753.54/21,437.55
  6. Step 6: Final answer
    x = 16,568.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.