Home / 21,038.01-31,566.33-11,174.91

Finding the Fourth Proportional to 21,038.01, 31,566.33 and 11,174.91

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Solution

The fourth proportional to 21,038.01, 31,566.33 and 11,174.91 is: 16,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.01 : 31,566.33 = 11,174.91 : x
  2. Step 2: Convert to fraction form
    21,038.01/31,566.33 = 11,174.91/x
  3. Step 3: Cross multiply
    21,038.01x = 31,566.33 × 11,174.91
  4. Step 4: Simplify right side
    21,038.01x = 352,750,896.78
  5. Step 5: Solve for x
    x = 352,750,896.78/21,038.01
  6. Step 6: Final answer
    x = 16,767.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.