Home / 21,045.01-29,029.30-12,541.54

Finding the Fourth Proportional to 21,045.01, 29,029.30 and 12,541.54

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Solution

The fourth proportional to 21,045.01, 29,029.30 and 12,541.54 is: 17,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.01 : 29,029.30 = 12,541.54 : x
  2. Step 2: Convert to fraction form
    21,045.01/29,029.30 = 12,541.54/x
  3. Step 3: Cross multiply
    21,045.01x = 29,029.30 × 12,541.54
  4. Step 4: Simplify right side
    21,045.01x = 364,072,127.12
  5. Step 5: Solve for x
    x = 364,072,127.12/21,045.01
  6. Step 6: Final answer
    x = 17,299.69

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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.