Home / 21,562.05-29,754.86-12,001.62

Finding the Fourth Proportional to 21,562.05, 29,754.86 and 12,001.62

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Solution

The fourth proportional to 21,562.05, 29,754.86 and 12,001.62 is: 16,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.05 : 29,754.86 = 12,001.62 : x
  2. Step 2: Convert to fraction form
    21,562.05/29,754.86 = 12,001.62/x
  3. Step 3: Cross multiply
    21,562.05x = 29,754.86 × 12,001.62
  4. Step 4: Simplify right side
    21,562.05x = 357,106,462.87
  5. Step 5: Solve for x
    x = 357,106,462.87/21,562.05
  6. Step 6: Final answer
    x = 16,561.80

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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.