Home / 21,338.29-29,424.85-14,165.61

Finding the Fourth Proportional to 21,338.29, 29,424.85 and 14,165.61

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Solution

The fourth proportional to 21,338.29, 29,424.85 and 14,165.61 is: 19,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.29 : 29,424.85 = 14,165.61 : x
  2. Step 2: Convert to fraction form
    21,338.29/29,424.85 = 14,165.61/x
  3. Step 3: Cross multiply
    21,338.29x = 29,424.85 × 14,165.61
  4. Step 4: Simplify right side
    21,338.29x = 416,820,949.41
  5. Step 5: Solve for x
    x = 416,820,949.41/21,338.29
  6. Step 6: Final answer
    x = 19,533.94

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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.