Home / 54,428.60-81,638.10-14,982.20

Finding the Fourth Proportional to 54,428.60, 81,638.10 and 14,982.20

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Solution

The fourth proportional to 54,428.60, 81,638.10 and 14,982.20 is: 22,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,428.60 : 81,638.10 = 14,982.20 : x
  2. Step 2: Convert to fraction form
    54,428.60/81,638.10 = 14,982.20/x
  3. Step 3: Cross multiply
    54,428.60x = 81,638.10 × 14,982.20
  4. Step 4: Simplify right side
    54,428.60x = 1,223,118,341.82
  5. Step 5: Solve for x
    x = 1,223,118,341.82/54,428.60
  6. Step 6: Final answer
    x = 22,471.98

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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.