Home / 21,022.01-29,011.52-12,070.97

Finding the Fourth Proportional to 21,022.01, 29,011.52 and 12,070.97

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Solution

The fourth proportional to 21,022.01, 29,011.52 and 12,070.97 is: 16,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.01 : 29,011.52 = 12,070.97 : x
  2. Step 2: Convert to fraction form
    21,022.01/29,011.52 = 12,070.97/x
  3. Step 3: Cross multiply
    21,022.01x = 29,011.52 × 12,070.97
  4. Step 4: Simplify right side
    21,022.01x = 350,197,127.22
  5. Step 5: Solve for x
    x = 350,197,127.22/21,022.01
  6. Step 6: Final answer
    x = 16,658.59

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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.