Home / 21,607.13-29,842.66-14,424.54

Finding the Fourth Proportional to 21,607.13, 29,842.66 and 14,424.54

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Solution

The fourth proportional to 21,607.13, 29,842.66 and 14,424.54 is: 19,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.13 : 29,842.66 = 14,424.54 : x
  2. Step 2: Convert to fraction form
    21,607.13/29,842.66 = 14,424.54/x
  3. Step 3: Cross multiply
    21,607.13x = 29,842.66 × 14,424.54
  4. Step 4: Simplify right side
    21,607.13x = 430,466,642.88
  5. Step 5: Solve for x
    x = 430,466,642.88/21,607.13
  6. Step 6: Final answer
    x = 19,922.43

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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.