Home / 20,388.84-30,583.29-16,421.52

Finding the Fourth Proportional to 20,388.84, 30,583.29 and 16,421.52

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Solution

The fourth proportional to 20,388.84, 30,583.29 and 16,421.52 is: 24,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.84 : 30,583.29 = 16,421.52 : x
  2. Step 2: Convert to fraction form
    20,388.84/30,583.29 = 16,421.52/x
  3. Step 3: Cross multiply
    20,388.84x = 30,583.29 × 16,421.52
  4. Step 4: Simplify right side
    20,388.84x = 502,224,108.40
  5. Step 5: Solve for x
    x = 502,224,108.40/20,388.84
  6. Step 6: Final answer
    x = 24,632.30

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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.