Home / 20,106.30-30,159.45-13,774.93

Finding the Fourth Proportional to 20,106.30, 30,159.45 and 13,774.93

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Solution

The fourth proportional to 20,106.30, 30,159.45 and 13,774.93 is: 20,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.30 : 30,159.45 = 13,774.93 : x
  2. Step 2: Convert to fraction form
    20,106.30/30,159.45 = 13,774.93/x
  3. Step 3: Cross multiply
    20,106.30x = 30,159.45 × 13,774.93
  4. Step 4: Simplify right side
    20,106.30x = 415,444,312.59
  5. Step 5: Solve for x
    x = 415,444,312.59/20,106.30
  6. Step 6: Final answer
    x = 20,662.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.