Home / 28,200.90-42,301.35-16,391.10

Finding the Fourth Proportional to 28,200.90, 42,301.35 and 16,391.10

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Solution

The fourth proportional to 28,200.90, 42,301.35 and 16,391.10 is: 24,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.90 : 42,301.35 = 16,391.10 : x
  2. Step 2: Convert to fraction form
    28,200.90/42,301.35 = 16,391.10/x
  3. Step 3: Cross multiply
    28,200.90x = 42,301.35 × 16,391.10
  4. Step 4: Simplify right side
    28,200.90x = 693,365,657.99
  5. Step 5: Solve for x
    x = 693,365,657.99/28,200.90
  6. Step 6: Final answer
    x = 24,586.65

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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.