Home / 28,742.10-39,663.68-16,166.84

Finding the Fourth Proportional to 28,742.10, 39,663.68 and 16,166.84

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Solution

The fourth proportional to 28,742.10, 39,663.68 and 16,166.84 is: 22,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.10 : 39,663.68 = 16,166.84 : x
  2. Step 2: Convert to fraction form
    28,742.10/39,663.68 = 16,166.84/x
  3. Step 3: Cross multiply
    28,742.10x = 39,663.68 × 16,166.84
  4. Step 4: Simplify right side
    28,742.10x = 641,236,368.37
  5. Step 5: Solve for x
    x = 641,236,368.37/28,742.10
  6. Step 6: Final answer
    x = 22,310.00

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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.