Home / 21,348.32-29,395.46-19,345.85

Finding the Fourth Proportional to 21,348.32, 29,395.46 and 19,345.85

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Solution

The fourth proportional to 21,348.32, 29,395.46 and 19,345.85 is: 26,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.32 : 29,395.46 = 19,345.85 : x
  2. Step 2: Convert to fraction form
    21,348.32/29,395.46 = 19,345.85/x
  3. Step 3: Cross multiply
    21,348.32x = 29,395.46 × 19,345.85
  4. Step 4: Simplify right side
    21,348.32x = 568,679,988.68
  5. Step 5: Solve for x
    x = 568,679,988.68/21,348.32
  6. Step 6: Final answer
    x = 26,638.17

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Double scale
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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.