Home / 21,703.92-29,962.56-14,161.20

Finding the Fourth Proportional to 21,703.92, 29,962.56 and 14,161.20

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Solution

The fourth proportional to 21,703.92, 29,962.56 and 14,161.20 is: 19,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.92 : 29,962.56 = 14,161.20 : x
  2. Step 2: Convert to fraction form
    21,703.92/29,962.56 = 14,161.20/x
  3. Step 3: Cross multiply
    21,703.92x = 29,962.56 × 14,161.20
  4. Step 4: Simplify right side
    21,703.92x = 424,305,804.67
  5. Step 5: Solve for x
    x = 424,305,804.67/21,703.92
  6. Step 6: Final answer
    x = 19,549.73

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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.