Home / 21,022.68-29,008.14-12,070.56

Finding the Fourth Proportional to 21,022.68, 29,008.14 and 12,070.56

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Solution

The fourth proportional to 21,022.68, 29,008.14 and 12,070.56 is: 16,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.68 : 29,008.14 = 12,070.56 : x
  2. Step 2: Convert to fraction form
    21,022.68/29,008.14 = 12,070.56/x
  3. Step 3: Cross multiply
    21,022.68x = 29,008.14 × 12,070.56
  4. Step 4: Simplify right side
    21,022.68x = 350,144,494.36
  5. Step 5: Solve for x
    x = 350,144,494.36/21,022.68
  6. Step 6: Final answer
    x = 16,655.56

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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.