Home / 28,407.05-39,205.10-17,082.34

Finding the Fourth Proportional to 28,407.05, 39,205.10 and 17,082.34

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Solution

The fourth proportional to 28,407.05, 39,205.10 and 17,082.34 is: 23,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.05 : 39,205.10 = 17,082.34 : x
  2. Step 2: Convert to fraction form
    28,407.05/39,205.10 = 17,082.34/x
  3. Step 3: Cross multiply
    28,407.05x = 39,205.10 × 17,082.34
  4. Step 4: Simplify right side
    28,407.05x = 669,714,566.50
  5. Step 5: Solve for x
    x = 669,714,566.50/28,407.05
  6. Step 6: Final answer
    x = 23,575.65

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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.