Home / 28,412.64-42,606-18,401.04

Finding the Fourth Proportional to 28,412.64, 42,606 and 18,401.04

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Solution

The fourth proportional to 28,412.64, 42,606 and 18,401.04 is: 27,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.64 : 42,606 = 18,401.04 : x
  2. Step 2: Convert to fraction form
    28,412.64/42,606 = 18,401.04/x
  3. Step 3: Cross multiply
    28,412.64x = 42,606 × 18,401.04
  4. Step 4: Simplify right side
    28,412.64x = 783,994,710.24
  5. Step 5: Solve for x
    x = 783,994,710.24/28,412.64
  6. Step 6: Final answer
    x = 27,593.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.