Home / 20,635.63-28,494.63-13,095.34

Finding the Fourth Proportional to 20,635.63, 28,494.63 and 13,095.34

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Solution

The fourth proportional to 20,635.63, 28,494.63 and 13,095.34 is: 18,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.63 : 28,494.63 = 13,095.34 : x
  2. Step 2: Convert to fraction form
    20,635.63/28,494.63 = 13,095.34/x
  3. Step 3: Cross multiply
    20,635.63x = 28,494.63 × 13,095.34
  4. Step 4: Simplify right side
    20,635.63x = 373,146,868.02
  5. Step 5: Solve for x
    x = 373,146,868.02/20,635.63
  6. Step 6: Final answer
    x = 18,082.65

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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.