Home / 28,906.42-39,890.01-16,159.63

Finding the Fourth Proportional to 28,906.42, 39,890.01 and 16,159.63

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Solution

The fourth proportional to 28,906.42, 39,890.01 and 16,159.63 is: 22,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.42 : 39,890.01 = 16,159.63 : x
  2. Step 2: Convert to fraction form
    28,906.42/39,890.01 = 16,159.63/x
  3. Step 3: Cross multiply
    28,906.42x = 39,890.01 × 16,159.63
  4. Step 4: Simplify right side
    28,906.42x = 644,607,802.30
  5. Step 5: Solve for x
    x = 644,607,802.30/28,906.42
  6. Step 6: Final answer
    x = 22,299.81

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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.