Home / 39,583.50-54,624-21,678.04

Finding the Fourth Proportional to 39,583.50, 54,624 and 21,678.04

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Solution

The fourth proportional to 39,583.50, 54,624 and 21,678.04 is: 29,915.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.50 : 54,624 = 21,678.04 : x
  2. Step 2: Convert to fraction form
    39,583.50/54,624 = 21,678.04/x
  3. Step 3: Cross multiply
    39,583.50x = 54,624 × 21,678.04
  4. Step 4: Simplify right side
    39,583.50x = 1,184,141,256.96
  5. Step 5: Solve for x
    x = 1,184,141,256.96/39,583.50
  6. Step 6: Final answer
    x = 29,915.02

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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.