Home / 28,135.17-38,830.20-16,199.01

Finding the Fourth Proportional to 28,135.17, 38,830.20 and 16,199.01

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Solution

The fourth proportional to 28,135.17, 38,830.20 and 16,199.01 is: 22,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.17 : 38,830.20 = 16,199.01 : x
  2. Step 2: Convert to fraction form
    28,135.17/38,830.20 = 16,199.01/x
  3. Step 3: Cross multiply
    28,135.17x = 38,830.20 × 16,199.01
  4. Step 4: Simplify right side
    28,135.17x = 629,010,798.10
  5. Step 5: Solve for x
    x = 629,010,798.10/28,135.17
  6. Step 6: Final answer
    x = 22,356.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.