Home / 21,035.84-29,029.18-11,475.68

Finding the Fourth Proportional to 21,035.84, 29,029.18 and 11,475.68

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Solution

The fourth proportional to 21,035.84, 29,029.18 and 11,475.68 is: 15,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.84 : 29,029.18 = 11,475.68 : x
  2. Step 2: Convert to fraction form
    21,035.84/29,029.18 = 11,475.68/x
  3. Step 3: Cross multiply
    21,035.84x = 29,029.18 × 11,475.68
  4. Step 4: Simplify right side
    21,035.84x = 333,129,580.34
  5. Step 5: Solve for x
    x = 333,129,580.34/21,035.84
  6. Step 6: Final answer
    x = 15,836.29

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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.