Home / 26,381.28-36,390.96-16,428

Finding the Fourth Proportional to 26,381.28, 36,390.96 and 16,428

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Solution

The fourth proportional to 26,381.28, 36,390.96 and 16,428 is: 22,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,381.28 : 36,390.96 = 16,428 : x
  2. Step 2: Convert to fraction form
    26,381.28/36,390.96 = 16,428/x
  3. Step 3: Cross multiply
    26,381.28x = 36,390.96 × 16,428
  4. Step 4: Simplify right side
    26,381.28x = 597,830,690.88
  5. Step 5: Solve for x
    x = 597,830,690.88/26,381.28
  6. Step 6: Final answer
    x = 22,661.17

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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.