Home / 21,382.70-29,459.82-14,916.14

Finding the Fourth Proportional to 21,382.70, 29,459.82 and 14,916.14

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Solution

The fourth proportional to 21,382.70, 29,459.82 and 14,916.14 is: 20,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.70 : 29,459.82 = 14,916.14 : x
  2. Step 2: Convert to fraction form
    21,382.70/29,459.82 = 14,916.14/x
  3. Step 3: Cross multiply
    21,382.70x = 29,459.82 × 14,916.14
  4. Step 4: Simplify right side
    21,382.70x = 439,426,799.49
  5. Step 5: Solve for x
    x = 439,426,799.49/21,382.70
  6. Step 6: Final answer
    x = 20,550.58

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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.