Home / 23,501.43-32,431.79-12,890.99

Finding the Fourth Proportional to 23,501.43, 32,431.79 and 12,890.99

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Solution

The fourth proportional to 23,501.43, 32,431.79 and 12,890.99 is: 17,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,501.43 : 32,431.79 = 12,890.99 : x
  2. Step 2: Convert to fraction form
    23,501.43/32,431.79 = 12,890.99/x
  3. Step 3: Cross multiply
    23,501.43x = 32,431.79 × 12,890.99
  4. Step 4: Simplify right side
    23,501.43x = 418,077,653.96
  5. Step 5: Solve for x
    x = 418,077,653.96/23,501.43
  6. Step 6: Final answer
    x = 17,789.46

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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.