Home / 28,120.99-42,247.10-16,442.41

Finding the Fourth Proportional to 28,120.99, 42,247.10 and 16,442.41

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Solution

The fourth proportional to 28,120.99, 42,247.10 and 16,442.41 is: 24,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.99 : 42,247.10 = 16,442.41 : x
  2. Step 2: Convert to fraction form
    28,120.99/42,247.10 = 16,442.41/x
  3. Step 3: Cross multiply
    28,120.99x = 42,247.10 × 16,442.41
  4. Step 4: Simplify right side
    28,120.99x = 694,644,139.51
  5. Step 5: Solve for x
    x = 694,644,139.51/28,120.99
  6. Step 6: Final answer
    x = 24,701.98

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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.