Home / 21,516.96-29,693.52-12,085.62

Finding the Fourth Proportional to 21,516.96, 29,693.52 and 12,085.62

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Solution

The fourth proportional to 21,516.96, 29,693.52 and 12,085.62 is: 16,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.96 : 29,693.52 = 12,085.62 : x
  2. Step 2: Convert to fraction form
    21,516.96/29,693.52 = 12,085.62/x
  3. Step 3: Cross multiply
    21,516.96x = 29,693.52 × 12,085.62
  4. Step 4: Simplify right side
    21,516.96x = 358,864,599.18
  5. Step 5: Solve for x
    x = 358,864,599.18/21,516.96
  6. Step 6: Final answer
    x = 16,678.22

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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.