Home / 28,861.70-43,292.55-16,420.10

Finding the Fourth Proportional to 28,861.70, 43,292.55 and 16,420.10

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Solution

The fourth proportional to 28,861.70, 43,292.55 and 16,420.10 is: 24,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.70 : 43,292.55 = 16,420.10 : x
  2. Step 2: Convert to fraction form
    28,861.70/43,292.55 = 16,420.10/x
  3. Step 3: Cross multiply
    28,861.70x = 43,292.55 × 16,420.10
  4. Step 4: Simplify right side
    28,861.70x = 710,868,000.26
  5. Step 5: Solve for x
    x = 710,868,000.26/28,861.70
  6. Step 6: Final answer
    x = 24,630.15

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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.