Home / 20,677.84-28,522.62-18,031.60

Finding the Fourth Proportional to 20,677.84, 28,522.62 and 18,031.60

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Solution

The fourth proportional to 20,677.84, 28,522.62 and 18,031.60 is: 24,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.84 : 28,522.62 = 18,031.60 : x
  2. Step 2: Convert to fraction form
    20,677.84/28,522.62 = 18,031.60/x
  3. Step 3: Cross multiply
    20,677.84x = 28,522.62 × 18,031.60
  4. Step 4: Simplify right side
    20,677.84x = 514,308,474.79
  5. Step 5: Solve for x
    x = 514,308,474.79/20,677.84
  6. Step 6: Final answer
    x = 24,872.45

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1.5x scale

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.