Home / 21,048.28-29,046.80-11,488.24

Finding the Fourth Proportional to 21,048.28, 29,046.80 and 11,488.24

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Solution

The fourth proportional to 21,048.28, 29,046.80 and 11,488.24 is: 15,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.28 : 29,046.80 = 11,488.24 : x
  2. Step 2: Convert to fraction form
    21,048.28/29,046.80 = 11,488.24/x
  3. Step 3: Cross multiply
    21,048.28x = 29,046.80 × 11,488.24
  4. Step 4: Simplify right side
    21,048.28x = 333,696,609.63
  5. Step 5: Solve for x
    x = 333,696,609.63/21,048.28
  6. Step 6: Final answer
    x = 15,853.87

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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.