Home / 28,117.99-42,242.60-16,439.41

Finding the Fourth Proportional to 28,117.99, 42,242.60 and 16,439.41

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Solution

The fourth proportional to 28,117.99, 42,242.60 and 16,439.41 is: 24,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.99 : 42,242.60 = 16,439.41 : x
  2. Step 2: Convert to fraction form
    28,117.99/42,242.60 = 16,439.41/x
  3. Step 3: Cross multiply
    28,117.99x = 42,242.60 × 16,439.41
  4. Step 4: Simplify right side
    28,117.99x = 694,443,420.87
  5. Step 5: Solve for x
    x = 694,443,420.87/28,117.99
  6. Step 6: Final answer
    x = 24,697.48

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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.