Home / 19,915.20-29,876.90-16,651.10

Finding the Fourth Proportional to 19,915.20, 29,876.90 and 16,651.10

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Solution

The fourth proportional to 19,915.20, 29,876.90 and 16,651.10 is: 24,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.20 : 29,876.90 = 16,651.10 : x
  2. Step 2: Convert to fraction form
    19,915.20/29,876.90 = 16,651.10/x
  3. Step 3: Cross multiply
    19,915.20x = 29,876.90 × 16,651.10
  4. Step 4: Simplify right side
    19,915.20x = 497,483,241.03
  5. Step 5: Solve for x
    x = 497,483,241.03/19,915.20
  6. Step 6: Final answer
    x = 24,980.08

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1.5x scale

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.