Home / 29,238.36-40,348.76-15,809.64

Finding the Fourth Proportional to 29,238.36, 40,348.76 and 15,809.64

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Solution

The fourth proportional to 29,238.36, 40,348.76 and 15,809.64 is: 21,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,238.36 : 40,348.76 = 15,809.64 : x
  2. Step 2: Convert to fraction form
    29,238.36/40,348.76 = 15,809.64/x
  3. Step 3: Cross multiply
    29,238.36x = 40,348.76 × 15,809.64
  4. Step 4: Simplify right side
    29,238.36x = 637,899,370.05
  5. Step 5: Solve for x
    x = 637,899,370.05/29,238.36
  6. Step 6: Final answer
    x = 21,817.21

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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.