Home / 20,848.64-28,763.04-12,774.92

Finding the Fourth Proportional to 20,848.64, 28,763.04 and 12,774.92

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Solution

The fourth proportional to 20,848.64, 28,763.04 and 12,774.92 is: 17,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.64 : 28,763.04 = 12,774.92 : x
  2. Step 2: Convert to fraction form
    20,848.64/28,763.04 = 12,774.92/x
  3. Step 3: Cross multiply
    20,848.64x = 28,763.04 × 12,774.92
  4. Step 4: Simplify right side
    20,848.64x = 367,445,534.96
  5. Step 5: Solve for x
    x = 367,445,534.96/20,848.64
  6. Step 6: Final answer
    x = 17,624.44

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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.