Home / 20,300.28-28,026.82-13,937.32

Finding the Fourth Proportional to 20,300.28, 28,026.82 and 13,937.32

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Solution

The fourth proportional to 20,300.28, 28,026.82 and 13,937.32 is: 19,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.28 : 28,026.82 = 13,937.32 : x
  2. Step 2: Convert to fraction form
    20,300.28/28,026.82 = 13,937.32/x
  3. Step 3: Cross multiply
    20,300.28x = 28,026.82 × 13,937.32
  4. Step 4: Simplify right side
    20,300.28x = 390,618,758.92
  5. Step 5: Solve for x
    x = 390,618,758.92/20,300.28
  6. Step 6: Final answer
    x = 19,242.04

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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.