Home / 21,336.08-29,446.40-12,842.62

Finding the Fourth Proportional to 21,336.08, 29,446.40 and 12,842.62

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Solution

The fourth proportional to 21,336.08, 29,446.40 and 12,842.62 is: 17,724.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.08 : 29,446.40 = 12,842.62 : x
  2. Step 2: Convert to fraction form
    21,336.08/29,446.40 = 12,842.62/x
  3. Step 3: Cross multiply
    21,336.08x = 29,446.40 × 12,842.62
  4. Step 4: Simplify right side
    21,336.08x = 378,168,925.57
  5. Step 5: Solve for x
    x = 378,168,925.57/21,336.08
  6. Step 6: Final answer
    x = 17,724.39

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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.