Home / 21,426.12-29,552.10-13,866.62

Finding the Fourth Proportional to 21,426.12, 29,552.10 and 13,866.62

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Solution

The fourth proportional to 21,426.12, 29,552.10 and 13,866.62 is: 19,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.12 : 29,552.10 = 13,866.62 : x
  2. Step 2: Convert to fraction form
    21,426.12/29,552.10 = 13,866.62/x
  3. Step 3: Cross multiply
    21,426.12x = 29,552.10 × 13,866.62
  4. Step 4: Simplify right side
    21,426.12x = 409,787,663.26
  5. Step 5: Solve for x
    x = 409,787,663.26/21,426.12
  6. Step 6: Final answer
    x = 19,125.61

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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.