Home / 19,260.10-28,859.10-10,915.30

Finding the Fourth Proportional to 19,260.10, 28,859.10 and 10,915.30

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Solution

The fourth proportional to 19,260.10, 28,859.10 and 10,915.30 is: 16,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.10 : 28,859.10 = 10,915.30 : x
  2. Step 2: Convert to fraction form
    19,260.10/28,859.10 = 10,915.30/x
  3. Step 3: Cross multiply
    19,260.10x = 28,859.10 × 10,915.30
  4. Step 4: Simplify right side
    19,260.10x = 315,005,734.23
  5. Step 5: Solve for x
    x = 315,005,734.23/19,260.10
  6. Step 6: Final answer
    x = 16,355.35

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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.